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High Precision Digital RTD-Thermocouple Thermometer-Data Logger
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
DP9602 Series
  • Reference Standard Thermometer for Pt100 and Thermocouple Sensors
  • High Accuracy ±0.01ºC Pt100, ±0.18ºC Thermocouple
  • ±0.025ºC System Accuracy with Pt100 (Based on DP9600-SYS-CAL)
  • Alpha Numeric Display
  • User Selectable Resolution, 0.001/0.01ºC for Pt100 Inputs
  • Data Logging
  • Measures Pt100 and Thermocouples J, K, T, E, R, S, B and N
  • Readout Directly in ºC, ºF, K, ohms or mV
  • Channel A, B or A-B Reading Including Dissimilar Sensor Types
  • USB Serial Communications
  • USB Flash Drive Port
  • Supplied with PC Software
  • Programmable Analog Retransmission Output
  • Rechargeable Lithium Ion Battery/ Mains Powered
 Manuals (contact with email : [email protected])


The DP9602 provides precise platinum resistancethermometer temperature measurement and loggingfor exacting applications in both laboratory and sitelocations. It is an exceptionally accurate and stabledigital thermometer particularly suitable for use withthermal calibration baths as a reference standard.The DP9602 is fully characterised for Pt100 sensorsand all major thermocouples J, K, N, T, E, R, S and B.Exceptionally stable automatic cold junctioncompensation with a rejection of 100:1 is incorporatedfor thermocouple ranges. Alternatively, external ormanual referencing can be selected as required.Applications include medical, pharmaceutical, food,environmental testing, R&D and educationalestablishments.Displayed values and user information are indicatedon a bright clear LED screen with diffused backlighting.Data can be displayed in °C, °F, Kelvin, ohms or mV as required;nine front panel push keys, the only user controls, areused in conjunction with the display screen. It is thisarrangement which makes for very simple and“friendly” operation. There are four input ports, two forthermocouples and two for 3- or 4-wire Pt100 sensors;the instrument automatically recognizes 3- or 4-wireconfigurations. The DP9602 can accept two Pt100sensors and/or two thermocouples of similar ordifferent types. The measured temperature can bedisplayed directly from one of the inputs ordifferentially between similar or different inputs.Differential temperature and the two individual channeltemperatures are displayed simultaneously.All four inputs can be scanned and values loggedaccording to parameters set up by the user in thePC software; the instrument incorporates a real-timeclock and on-board memory. A flash drive USB port isprovided to allow data to be stored and/or exported.PC software running in Windows® is provided asstandard; it allows programming of custom calibration,remote control and measure and logging functions.

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
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: Pt100
Accuracy: ±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
    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 (7.5 x 2.75 x 9.85")
Weight: 3 kg (6.61 lb) 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
Analog 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 (9.85") L, -50 to 250°C (-58 to 482°F)
DP9600-H450: 350 mm (13.75") L, -50 to 450°C (-58 to 842°F)
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