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TEMPMASTER-PRO

器件型号:TEMPMASTER-PRO
文件大小:0KB,共0页
厂商名称:LABFACILITY [LABFACILITY]
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TEMPMASTER-PRO器件文档内容

          TEMPMASTER PRO HIGH PRECISION
THERMOMETER /LOGGER FOR Pt100 SENSORS

G Reference standard thermometer for Pt100 sensors
G High accuracy 0.01C Pt100
G 40 milliKelvin (0.040C) system accuracy
G Precise linearisation conformity is realised by a hybrid maths polynomial technique
G Simple, fast digital matching to calibrated sensors, up to 10 points per channel retained in memory
G Additional digital matching to Pt100 sensors using custom constants
G Clear, comprehensive user information on alpha numeric display
G Resolution 0.01C for Pt100 inputs
G Smart sensor capability Pt100 for

   corrections stored on probe
G Data logging
G Wide temperature range
G Readout directly in C, F, K,
G Input circuitry configured to eliminate

   thermal voltages
G Two sensor input ports
G Channel A, B or A-B reading
G USB serial communications
G USB flash drive port
G Highly precise linearisation tracking
G Excellent long term stability
G Supplied with PC software
G Programmable analogue (retransmission)

   output
G Front panel data entry and function keys
G Our own design and manufacture
G Rechargeable Lithium Ion battery/mains powered
G CE & RoHS compliant
The Tempmaster PRO provides precise Platinum Resistance Thermometer temperature measurement
and logging for exacting applications in both laboratory and site locations. It is an exceptionally
accurate and stable digital thermometer particularly suitable for use with thermal calibration baths
as a reference standard.
Applications include medical, pharmaceutical, food, environmental testing, R&D and educational
establishments.

                           www.labfacility.co.uk
The Tempmaster PRO is a successor to the very successful Tempmaster-100 thermometer developed
over a 25 year period. Like its predecessor, the Tempmaster PRO provides laboratory standard
temperature measurement with Pt100 sensors and greater versatility to extend the scope of
applications.

Displayed values and user information are indicated on a bright clear OLED screen with diffused
backlighting. Data can be displayed in C,F,K, as required; nine front panel push keys, the only
user controls, are used in conjunction with the display screen. It is this arrangement which makes for
very simple and "friendly" operation.

Resolution is 0.01C: all computations are performed digitally without drift. Overall stability is
optimised by utilising only the highest quality components including high precision, expensive metal
film resistor networks.

There are two input ports for 3 or 4 wire Pt100 sensors; the instrument automatically recognises 3 or
4 wire configurations. The measured temperature can be displayed directly from one of the inputs or
differentially between the two inputs. Differential temperature and the two individual channel
temperatures are displayed simultaneously.

Individual calibrated sensors can have their appropriate calibration values programmed into the
Tempmaster PRO using either the keypad or the PC software supplied. The PC software also allows
corrections in the form of constants for individual Pt100 sensors to be programmed in. The non-
volatile memory ensures that the values are retained (until such time as they are changed) even after
switch-off. Where the calibration certificate relating to a particular probe states specific  values at
stated temperatures, up to ten such values are entered into the Tempmaster PRO with their relevant
temperature points using the front panel keypad or the software. The instrument then digitally
self-calibrates to the associated probe over the range embraced in the calibrated values used; the
temperature readout is "corrected" accordingly. Additional manual procedures are not required to
compute precise temperature readings since these are displayed directly; miscalculation errors are
thus eliminated. Very high system accuracies, better than 40 milliKelvins can be achieved using
probe matching.

Corrections which are "programmed in" can be displayed for confirmation. However, initial input,
adjustment, enabling and disabling of corrections are protected For by a special key sequence to
prevent accidental or unauthorised changes. Values can be changed by an authorised user at any
time.

For the Pt100 inputs,SMART probes can be used which incorporate dedicated `correction values`
within the connector of each probe.When a SMART probe is connected to input A or B or both
inputs, the corrections are automatically applied without the need for user intervention.

A common application for the Tempmaster PRO is the comparison calibration of "working" sensors
against a calibrated reference standard or semi-standard sensor. For example, the sensor under test
in channel B is compared against the reference sensor (with programmed corrections) in channel A.
When applied, the null function corrects the differential temperature readout between two sensors
to zero. For example, the apparent temperature difference between two sensors known to be at the
same actual temperature can be corrected to zero prior to, for example, heat exchanger
experiments.

Both inputs can be scanned and values logged according to parameters set up by the user in the PC
software;the instrument incorporates a real-time clock and on-board memory.

The adjustable contrast OLED display screen provides data readout, user prompts and mode
annunciation. This very important feature ensures a high degree of user friendliness and confidence.
User prompts indicate which buttons to press in the appropriate sequence when selecting
parameters and functions and when setting calibration values. Mode annunciation indicates which
mode of operation is currently selected.

A flash drive USB port is provided to allow data to be stored and/or exported. Firmware update are
also facilitated via this port.

PC software running in WINDOWS is provided as standard; it allows programming of custom
calibration, remote control & measure and logging functions.

SPECIFICATIONS

All values are valid for a nominal 240V 50Hz instrument supply and 20C ambient temperature

General

Inputs/Ranges/Sensors

Type                   Pt100 to IEC 751 (ITS 90 refers).

                       -200C to +850C

                       Ro = 100

                       3 or 4 wire connection with automatic recognition (with manual override)

Overall Accuracy       0.01C 0.0005% of span

Linearisation Conformity Better than 0.01C

Stability (vs ambient temperature)
                                  Better than 0.0025C per 1C ambient change

Warm-up                Negligible under normal ambient conditions. Allow 5-10 minutes for full stability unless stored at low
                       temperature, then 30 minutes minimum.

Pt100 Sensor Current   0.5mA

Resolution of data display 0.01

Variable filter        Sampling rate selectable between 4 and 64 (measurements averaged per reading).

Measurement Units      C, F, K,

Measurement Modes      A, B or A-B.

Custom Calibration     Up to 10 calibration values can be allocated to Pt100 input A & B and to thermocouples input A & B. Values are
                       retained in non-volatile memory until replaced by user. ITS 90 or IPTS 68 coefficients can be used for custom
                       calibration.

Smart Sensor Connection Correction values stored in connector

Null Function          Corrects differential temperature readout between two sensors to zero.

Sensor Lead Resistance 5 each lead maximum

Logging                8000 readings

Supply                 Internal Lithium Ion rechargeable batteries. Mains 90-260V 50/60Hz universal adaptor included. Battery charge
                       life up to 12 hours with full charge.

Series Mode Rejection  60dB @ 50Hz (50mV RMS applied)

Common Mode Rejection 30V RMS applied between input and earth produces no
                                  measurable effect.

Display                128 x 64 pixel character OLED screen with diffused backlighting.
                       Wide viewing angle, high contrast (adjustable).
Front Panel Controls    9 membrane push-keys to control all instrument functions

Mechanical/Case         Metal bench top case / adjustable tilt

Dimensions              Overall
                        190mm(W) x 70mm(H) x 250mm(D)

Weight                  3.0kg approx.

Input Connections       2 x Pt100 via D type connectors

USB Serial              Isolated, 9600 Baud, 8 data, no parity, 1 stop bit.

Communications          Remote control and measure.

PC Software (standard)  Supplied as standard on CD-ROM. Remote control and measure:
                        Log readings to file/Download to PC/Programming corrections

Analogue Output (standard) User programmable, 0 to 5V

Application Note:       Inputs are not isolated in the instrument, which is primarily designed for laboratory applications and site
                        calibration of industrial temperature sensors. Probes connected to the instrument must therefore be isolated
                        from high voltage pick-up.

ACCESSORIES AND ORDER CODES

Tempmaster PRO is supplied complete with switch mode power supply (90-260V, 50/60Hz), two Pt100 "D" connectors,
operating manual and PC software.

Precision Pt100 Probes

Stainless steel probes, 6mm diameter with 2m screened PTFE lead Pt100 Probes and connector

LP - L250:         250mm long, maximum 250C

LP - H450:         350mm long, maximum 450C

UKAS Calibration

LP - UKAS:         UKAS calibration for instrument alone.

LP - SYS.CAL: UKAS calibration of instrument and sensor together at five points.

LP - COR.CAL: UKAS calibration of instrument and sensor together at five points,
                     after initial calibration of sensor only and programming of corrections.

Accessories

LP - TBLK3:        Terminal Block for connection of 3 wire Pt100s
LP - TBLK4:        Terminal Block for connection of 4 wire Pt100s

                                             Specifications may be subject to change.

           LABFACILITY LIMITED www.labfacility.co.uk

SOUTHERN UK & EXPORT DIVISION: Units 5,6 & 7, Block K, Southern Cross Industrial Estate, Shripney Road, Bognor Regis,
  West Sussex PO22 9SE Export Sales: tel: +44(0)1243 871287 fax: +44(0)1243 871281 email: exportsales@labfacility.co.uk
              Southern UK Sales: tel: +44(0)1243 871280 fax: +44(0)1243 871281 email: southernsales@labfacility.co.uk
                  NORTHERN UK DIVISION: Eden Place, Unit 3b Outgang Lane, Dinnington, Sheffield S25 3QT
               Northern UK Sales: tel: +44(0)1909 569446 fax: +44(0)1909 550632 email: northernsales@labfacility.co.uk

                                                                                                                                                                                                       Data Ref: 050112/DS/A

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