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5.2 SPECIFICATIONS
Input Power:
Recorder: 9Vdc +0.5V @ 5VA (depends on external loads)
External AC Universal adaptor: 100 – 240Vac 50/60 Hz
Optional isolated: 12 – 24 Vdc input (not compatible with battery
backup option)
Battery Option:
Internal battery pack provides uninterrupted operation during black
out. 6Vdc 2400 mAH NiMH – backup time 6 hours typical –
depends on external load.
Output:
2 outputs 5Vdc @ 50mA to power external sensors
Isolation – 300V DC/AC to system ground/chassis.
No of Channels:
2
Universal DC Input
:
Isolated input: 300V AC/DC to system ground/chassis. Inputs share
a common ground connection.
DC Input
: Resolution:
0.025%
Voltage:
Ranges: 0 to 250mV; 1.25V; 2.5V; 5V; 2.5V; 25V
Accuracy 0.1%.
Current:
Accuracy: 0.1% excluding 250 ohm external shunt (required)
Ranges: 0 – 20mA; 4 – 20mA; 0 – 50mA; 10 – 50mA
Thermocouple:
Accuracy: 0.3%. Ambient temp. sensor ac1.5°
J
-100 to 760 °C +2°C (-148 to 1400 °F +3°F)
K
-100 to 1000°C +2°C (-148 to 1830 °F +3°F)
T
-100 to 400 °C +2°C (-148 to 750 °F +3°F)
E
-80 to 400 °C +2°C (-112 to 750 °F +3°F)
RTD:
2 or 3 wire. Resolution 0.1°C, Accuracy 0.3%
Internal current source: 1mA
100 ohm Pt385
-100 to 750°C (-148 to 1380 °F)
100 ohm Pt 392
-100 to 750°C (-148 to 1380 °F)
Frequency Input (Hz)/
Range:
0 – 10,000 Hz or 0 – 600,000 RPM
Speed Input (RPM):
Accuracy: Freq: +1Hz;
RPM:
+1 RPM to 9,999 RPM then +10RPM
Input:
low: <1.0Vdc high: >3.0Vdc <12Vdc
Pulse width: 10
ч
sec minimum
Input Impedance:
>100k
Measurement Rate:
up to 100 samples/sec per channel
Math Function:
y = mx + b; average, hi peak., lo peak
Media:
Compact Flash to 2 GB.
Display:
LCD Graphics 160 x 80 pixels black FSTN with White LED backlight
User controlled Backlight level and Contrast adjust (electronic)
Display Modes:
Trending (Horizontal), Large Dual Digital Readout, Mixed Mode
User Interface:
5 buttons keypad with 2
nd
Function operation
Clock:
Internal battery backed clock, with auto leap year and daylight savings
Relay Output:
Two alarm outputs: 30V 0.5A Form A relays
Opto-isolated Input:
One input 5 to 12Vdc operation @ 10mA typical.
Audible:
Internal buzzer (tones)
Summary of Contents for Data Chart 1250
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