CRD-400 Multipurpose Readout
CRD-400 Multipurpose Readout
CRD-400 Multipurpose Readout


  • Sisgeo CRD-400 Multipurpose Readout a new generation single-channel multipurpose readout designed to take readings of all Sisgeo Instruments, both electric and vibrating wire.
  • 3.5” color graphic display sunlight reliable
  • AA type Ni-MH rechargeable battery
  • Splash-proof hand-held case
  • CRD-400 permits readings in both electrical and engineering units; the wide display shows battery level in every windows.
  • The readout is furnished travel bag, battery charger, 6 clips cable and CD-ROM manual.
  • High accuracy (0.01% FS), wide variety of measures and an extremely competitive price, make of CRD-400 a unique product on the market, able to match the most demanding needs.


Type of measurements mA - mV - V - mV/V - °C - Hz (µsec - digit - µε)
A/D converter 24-bit Sigma-Delta ADC (22 true bit)
Range and power supply

Current loop (2 wires): range 0÷21 mA - Power supply: 24V DC,Transmitter (3 wires): range 0÷21mA - Power supply: 24V DC,Voltage (4 wires): range ±20 mV, ±1V, ±10V - Power supply: 24V DC,Wheatstone bridge (6 wires): range ±10 mV/V - Power supply: 5 V DC, Servo-inclinometer: range ±10000 mV - Power supply: ±12V DC, Platinum RTD (Pt100): range -150°C to +150°C - Power supply: 1 mA, Thermistor (NTC): range -30°C to +150°C - Power supply: 0.04mA, 0.1mA, 1mA, Vibrating Wire: range 400Hz to 6000Hz - Excitation sine wave signal (adaptive): ±10 V

Reading resolution 1µA at FS 20mA - 1µV at FS ±20mV - 10µV at FS ±1V - 100µV at FS ±10V 0.001mV/V at FS 10mV/V - 0.1°C for PT100 - 0.1°C for NTC 0.1 Hz at FS from 400 to 6000Hz
Accuracy 0.01% FS (0.1% FS for PT100 and NTC)
Temperature drift 0.001 % FS / °C
Rechargeable battery 4 x AA, NiMH, 2400 mAh
Operating time min. 4h (constant use, 24 Vdc @ 20 mA @ 25 °C, maximum backlight, 2400 mAh batteries) min. 6h (constant use, 24 Vdc @ 20 mA @ 25 °C, 50% backlight, 2400 mAh batteries)
Battery charger Programmable charger, IP41, input voltage: 100-240 V AC, 50-60 Hz, 1.3A
Display Amorphous silicon TFT LCD panel with LED backlight unit, 320 x 240, 3.5”, sunlight reliability
Enviromental Conditions  
Operating temperature from -20°C to +60°C
Storage temperature from -30°C to +70°C
Physical Characteristics  
Weight 0.5 Kg
Dimensions (L x W x H) 100 x 230 x 45 mm
Protection Degree IP67
Material ABS
Connectors 1 x instrument, 1 x battery charger
Eletromagnetic compatibility EN 61326-1 (2006)
Safety requirements EN 61010-1 (2001)



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