Hioki 8937 VOLTAGE/TEMPERATURE UNIT

Voltage and temperature (with thermocouple) input amplifier This UNIT is equipped with circuits for two independently usable input channels. Simply slot the 8937 into the MEMORY HiCORDER for use.

Basic Specifications

• Input Number of channels:2 each for voltage and temperature * Input isolated from output, inter-channel isolation
• Voltage input:isolated BNC thermocouple input:plug-in terminal
• Voltage measurement range 500 µV to 2 V/division; 12 settings, the measurement resolution is 1/80 of range * When attached to recorder where full-scale (f.s.) = 20 divisions
• 1 mV to 5 V/division; 12 settings, the measurement resolution is 1/160 of range * When attached to recorder where full-scale (f.s.) = 10 divisions
• Low-pass filter: 5/500/5 k/100 kHz
• Temperature measurement range 10 °C to 100 °C/division; 4 settings, the measurement resolution is 1/80 of range * When attached to recorder where full-scale (f.s.) = 20 divisions
• 20 °C to 200 °C/division; 4 settings, the measurement resolution is 1/160 of range * When attached to recorder where full-scale (f.s.) = 10 divisions
• Low-pass filter: 5/500 Hz
• Thermocouple range K: -200 to 1350 °C, E: -200 to 800 °C, J: -200 to 1100 °C, T: -200 to 400 °C, N: -200 to 1300 °C, R: 0 to 1700 °C, S: 0 to 1700 °C, B: 300 to 1800 °C
• Reference junction compensation: internal/ external (switchable)
• Maximum sampling rate Voltage input: 1 MS/s,
• Temperature measurement: 4 kS/s (2-channel simultaneous sampling)
• Accuracy Voltage input: DC amplitude ±0.4% of f.s. Zero-position ±0.15% of f.s.
• Temperature measurement (K, E, J, T, N): ±0.1% of f.s. ±1 °C, ±0.1% of f.s. ±2 °C (-200 to 0 °C), (R, S): ±0.1% of f.s. ±3 °C, (B): ±0.1% of f.s. ±4 °C (400 to 1800 °C)
• Reference junction compensation accuracy: ±0.1 % f.s. ±1.5 °C (internal compensation)
• Zero-position Voltage input: -50 % to 150 %, 1 % steps * With zero-adjust function
• Temperature measurement: -100 % to 100 %, 1 % steps
• Frequency characteristics Voltage input: DC to 400 kHz + 1/-3 dB Temperature measurement: DC to 1 kHz + 1/-3 dB
• Max. allowable input 30 V rms or 60 V DC (upper voltage which when applied to between input pins does not damage them)
• Max. rated voltage to earth 30 V rms or 60 V DC (upper voltage which when applied to input channel casing or between input channels does not damage them)
• Accessories None * The input cord is optional