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The DP9601 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
Displayed values and user information are indicated on
a bright clear LED screen with diffused backlighting.
Data can be displayed in °C, °F, K, and ohms 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
There are two input ports for 3- or 4-wire Pt100
sensors; the instrument automatically recognizes
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.
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 Ro = 100 O 3- or 4-wire connection with automatic recognition (with manual override) Overall Accuracy: ±0.01°C ±0.0005% of span Linearisation Conformity: Better than ±0.01°C Stability (vs Ambient Temperature): Better than 0.0025°C per 1°C ambient change Warm-Up: Negligible under normal ambient conditions. Allow 5 to 10 minutes for full stability unless stored at low temperature, then 30 minutes minimum Pt100 Sensor Current: 0.5 mA Resolution of Data Display: 0.01 Variable Filter: Sampling rate selectable between 4 and 64 (measurements averaged per reading) Measurement Units: °C, °F, K, Ω 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 Ω each lead maximum 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 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 190 W x 70 H x 250 mm D Weight: 3 kg approx Input Connections: 2 x Pt100 via D type connectors USB Serial: Isolated, 38400 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 1 V 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 instrumentmust therefore be isolated from high voltage pick-up. Precision Pt100 Probes: 304 Stainless steel probes, 6 mm Dia. with 2 m screened PTFE lead 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 DKK Noter: The DP9601 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.