Dwyer 1600 - Manual (Page 2)

4309-0700-2 2 Rev. 2/99
Required Equipment
Input Signal
Thermocouple inputs require a Millivolt Runup (MVR) with an out-
put impedance of 100 ohms or less. Accuracy must be ±0.1% or
better.
RTD inputs require a laboratory grade Resistance Decade box (RD)
with resolution to 0.01 ohm and an accuracy of ±0.1% or better.
Voltage inputs require a variable power supply with a maximum of
10 Volts or greater.
Current inputs require a variable power supply (as Voltage inputs
above) and a precision resistor of 100 ohms ± 0.1% or better. (If
you have a 20 Volt variable power supply, you may use a 1000 ohm
resistor ±0.1% or better. This allows reading milliamps as volts on
the DVM.)
One Digital Multimeter (DMM) with resolution to 4 1/2 digits or better with
an accuracy of 0.05% or better.
One Ambient Temperature Indicator with an accurcy of ±1°F or better.
One low wattage, small tip soldering iron, one pair needle nose pliers, sol-
der, and assorted test leads.
The housing of the control can be used for test and recalibration purposes.
Wiring
Assemble the equipment you need with the control(s) to be calibrated on a
clear work space. If you are calibrating for thermocouple inputs, make sure
that the area is free from drafts or strong air currents.
For thermocouple, millivolt, or voltage inputs, wire the control as shown in
figure A.
For RTD inputs wire the control as shown in Figure B.
Caution: The components in the control are suseptable
to damage from ESD, electrostatic discharge. Take ap-
propriate action to avoid exposure to ESD. Controls
damaged by ESD are not covered by warranty.