IM CA71-E
12-3
Specifications
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App
12. Specifications
■ General Specifications
Signal sourcing unit
response time:
Approx. 1 second
(time between start of voltage change and when
voltage enters accuracy range)
Signal sourcing unit
voltage limiter:
Approx. 32 V
Signal sourcing unit
current limiter:
Approx. 25 mA
Divided output (n/m) function:
Output = setting × (n/m) n = 0 - m; m = 1 - 19; n ≤ m
Auto-step output function:
n value sent automatically when n/m function
selection is selected
(two options: approx. 2.5 seconds/step or
approx. 5 seconds/step)
Sweep function:
Sweep time
(two options: approx. 16 seconds or approx. 32 seconds)
Memory function:
50 value sets
(sourced and measured values are stored as value sets
with the same address (up to 50 value sets can be stored))
Measuring unit maximum input:
Voltage terminal: 100 VDC, 300 VAC
Current terminal: 120 mA DC
Current terminal input protection:
Fuses: 100 mA/400 V
Measuring unit ground voltage:
Maximum 300 V AC
Measurement display
updating rate:
Approximately once per second
Serial interface:
Enabled when communication cable (RS232) is connected;
sold separately as optional accessory (CA71 only)
Display:
Segmented LCD (approx. 76 mm × 48 mm)
Backlight:
LED backlight; auto-off after one minute
(from when LIGHT key is turned on)
Power supply:
Four AA-size (LR6) alkaline batteries, or
dedicated AC adapter (8.5 V/150 mA: sold separately)
Battery life:
Measurement off, output 5 V DC/10 kΩ or greater:
Approx. 40 hours
Simultaneous signal source/measurement, output
5 VDC/10 kΩ or greater: Approx. 20 hours
Simultaneous signal source//measurement, output
20 mA/5 V: Approximately 12 hours
(using alkaline batteries, with backlight off)
Insulation resistance:
Across input terminal and output terminal,
500 V DC, 50 MΩ or greater
Withstand voltage:
Across input terminal and output terminal,
3.7 kVAC, for one minute
