GRAPHTEC midi LOGGER GLT400 Quick Manual Start page 15

<External input/output functions>
Items
Input specifications
(Pulse/Logic/Trigger/Ex-
ternal sampling)
Alarm output specifica-
tions
<Common specifications of the terminal in the input section>
Items
Method
Measurement Voltage
range
Tempera-
ture
Humidity
A/D converter
Temperature coefficient
Common mode rejection
ratio
Noise
Maximum input voltage: 0 to +30V (single-ended ground input)
Input threshold voltage: approx. +2.5V
Hysteresis: approx. 0.5V (+2.5V to +3V)
Output format: Open collector output
(5V pull-up resistance 10kΩ)
Photo MOS relay scanning system, all channels isolated, balanced input
20, 50, 100, 200, 500mVF.S.,
1, 2, 5, 10, 20, 50, 100VF.S., 1-5VF.S.
Thermocouple: K, J, E, T, R, S, B, N, C (WRe5-26)
Resistance bulb: Pt100, JPt100, Pt1000 (IEC751)
Measuring range: 100°C, 500°C, 2,000°C
0 to 100% (Voltage 0V to 1V scaling conversion)
16-bit Delta-Sigma A/D converter (Effective resolution: approx. 1/40,000
of ± range)
Gain: 0.01% of F.S./°C
Zero: 0.02% of F.S./°C
* Zero occurs when sampling speed is 10, 20 or 50 ms
At least 90 dB (50/60 Hz, signal source 300Ω or less)
At least 48 dB (with +/- terminals shorted)
14
Description
Description