Time Electronics 1048 Voltage-Current-Loop Calibrator - Manual (Page 7)

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V1.2 30/12/10 P a g e | 7 1048 Technical Manual
Source function (V & mA)
The NORM position outputs signals in the polarity indicated by the terminals.
The REV position reverses the polarity.
When outputting voltage or current, the OFF position disconnects the output signal and
places an open circuit on the output terminals. The display will read zero.
PS When the switch is in the REV position it should be noted that the display does not place
a – annunciator before the value.
TX SIM function
The switch is not used for this function and has no effect at all.
STEP and RAMP modes
In both these modes the function switch is in the source (SCR) position and the
NORM/OFF/REV switch performs in the same way as in the NORMAL operating mode i.e.
conventional V and I measure/source.
3.2. Measure – Voltage
The unit measures dc voltage in three selectable ranges, 0 to 0.22V (displayed in mV), 0 to
2.2V and 0 to 22V (plus over-range to 50V).
SPECIAL NOTE: Although the top range is nominally 22V it can be safely used to measure
voltages up to 50V.
• Set Function switch to MEAS
• Set OFF/V/I switch to V
• Set Range switch to the desired range
• Set Output switch to NORM
• Connect the unit to the signal source observing correct polarity, the voltage will be
displayed with 3.5 or 4.5 resolution - see section 3.1.1.
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Measure Mode
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