The DP9602 provides platinum resistance
thermometer and thermocouple temperature measurement and logging
for precision 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.
The DP9602 is fully characterised for Pt100 sensors
and all major thermocouples J, K, N, T, E, R, S and B.
Exceptionally stable automatic cold junction
compensation with a rejection of 100:1 is incorporated
for thermocouple ranges. Alternatively, external or
manual referencing can be selected as required.
Applications include medical, pharmaceutical, food,
environmental testing, R&D and educational
Displayed values and user information are indicated
on a bright clear LED screen with diffused back-lighting.
Data can be displayed in °C, °F, Kelvin, ohms or mV 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. There are four input ports, two for
thermocouples and two for 3- or 4-wire Pt100 sensors;
the instrument automatically recognizes 3- or 4-wire
The DP9602 can accept two Pt100
sensors and/or two thermocouples of similar or
different types. The measured temperature can be
displayed directly from one of the inputs or
differentially between similar or different inputs.
Differential temperature and the two individual channel
temperatures are displayed simultaneously.
All four 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. A flash drive USB port is
provided to allow data to be stored and/or exported.
PC software running in Windows® is provided as
standard; it allows programming of custom calibration,
remote control and measure and logging functions.
Specifications Inputs/Ranges/Sensors Type: Pt100 to IEC 751 (ITS 90 refers) -200 to 850°C (-328 to 1562°F) Ro = 100Ω 3- or 4-wire connection with automatic recognition (with manual override) thermocouples to IEC 584 No isolation exists between inputs Types: S: -50 to 1768°C (-58 to 3214°F) R: -42 to 1766°C (-43.6 to 3211°F) B: 254 to 1818°C (489 to 3304°F) J: -200 to 1200°C (-328 to 2192°F) K: -195 to 1370°C (-319 to 2498°F) E: -190 to 995°C (-310 to 1823°F) N: -160 to 1300°C (-256 to 2372°F) T: -193 to 399°C (-315 to 750°F) Overall Accuracy:
Pt100: ±0.01°C ±0.0005% of span Thermocouples J, K, T, E, N: ±0.2°C from -50 to 700°C (-58 to 1292°F), ±0.4°C from -200 to -50°C (-328 to -58°F), ±0.4°C from 700°C (1292°F) to full scale Thermocouples R, S, B: ± 0.3°C from 850°C (1562°F) to full scale, ±0.4°C below 850°C (1562°F), ±0.7°C below 0°C (32°F) Note: Type B not characterized below 200°C (392°F). Linearisation Conformity: Pt100: Better than ±0.01°C Thermocouples: ±0.05°C base metal (-200°C to span) ±0.1°C noble metal above 200°C Note: Performance of ADC (0.5µV resolution ) is superior to published thermocouple table best resolution of 1µV. Stability (vs Ambient Temperature): Pt100: Better than 0.0025ºC per 1ºC ambient change Thermocouples: Zero: Negligible drift excluding CJC effect Scale: < ±0.1ºC in 15ºC Warm-Up: Negligible under normal ambient conditions; allow 5 to 10 minutes for full stability unless stored at low temperature, then 30 minutes minimum Cold Junction Compensation: Automatic on all thermocouple ranges; better than ±1°C max shift for ±10°C ambient variation (100:1) or external via Pt100 on channel A or B or manual input of CJ temperature value Pt100 Sensor Current: 0.5 mA Resolution of Data Display: Pt100 0.01/0.001 user select for °'C, K and O Variable Filter: Sampling rate selectable between 4 and 64 (measurements averaged per reading) Thermocouples: 0.1°C all ranges Measurement Units: °C, °F, K, O or mV as applicable to sensor Measurement Modes: A, B or A-B; any combination of sensor types 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; alternatively, for Pt100 inputs ITS 90 or IPTS 68 coefficients can be used for custom calibration Smart Sensor Connection: Pt100 inputs only; correction values stored in connector Null Function: Corrects differential temperature readout between two sensors to zero Sensor Lead: Pt100: Resistance 5 Ω each lead maximum Thermocouples: 300 Ω loop total Logging: 8000 readings Supply: Internal lithium Ion rechargeable batteries; mains 90 to 260V 50/60 Hz universal adaptor included; battery charge life up to 12 hours with full charge Series Mode Rejection: 60 dB @ 50 Hz (50 mV RMS applied) Common Mode Rejection: 30V RMS applied between input and earth produces no measurable effect Display: 128 x 64 pixel OLED 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: 190 W x 70 H x 250 mm D Weight: 3 kg approx Input Connections: 2 x Pt100 via D type connectors 2 x thermocouple via standard sockets USB Serial Communications: Isolated, 38400 Baud, 8 data, no parity, 1 stop bit; 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 1 Vdc Precision Pt100 Probes: 304 stainless steel probes, 6 mm Dia. with 2 m screened PTFE lead and Pt100 probes and connector DP9600-L250: 250 mm L, -50 to 250°C DP9600-H450: 350 mm L, -50 to 450°C
† All amounts shown in EUR, GBP, or USD Note: The DP9602 digital thermometer is supplied complete with PC software and user manual on CD (download also available), AC/DC power adaptor, USB comm's lead, 2 x 9 way D connectors for sensor inputs, mating connector for analogue output and quick start guide.