Tesco 2100 - Two Load Option; Operation; Special Instructions for Disconnect Operation; Special Instructions for Connecting an External Load Box

TESCO THE EASTERN SPECIALTY COMPANY
Canal Street and Jefferson Avenue
Bristol, PA 19007
Date: 03/16/16
OPERATING INSTRUCTIONS
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CATALOG NO. 2100-I-E-
V
Desktop Meter Station
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the “A” load stab of the meter. Connect the current output of a load box to these two binding
post. Maximum current is 50A.
Two Load Option:
Either the receptacle load or the internal 0.5 amp load option can be added with the binding
post option. With this configuration a Load Selector switch is added. Set the switch to
INTERNAL for either the 0.5 amp load or the receptacle load. Set the switch to EXTERNAL for
connecting a load box to the binding post. When the switch is in the EXTERNAL position the
internal load is OFF.
CAUTION: DO NOT connect a load box to the 2100 with the internal load energized. Damage can
occur to one or both devices! Switch the Load Selector to the EXTERNAL position.
The zero insertion force socket is equipped with a meter interlock switch. A meter must be installed
and correctly seated for the unit to power up.
Operation
Verify meter form and operating voltage.
Set meter form switch and voltage selection switch.
If unit has two loading options select internal or external.
Rotate ZIF (Zero Insertion Force) release knob counter clockwise to open the socket. Insert meter.
Rotate knob clockwise to lock meter in socket.
Press POWER pushbutton to apply potential to meter. The pushbutton will light indicating power is
applied to the meter.
Press POWER pushbutton to remove power prior to removing meter from socket.
Special Instructions for Disconnect Operation
The 2100 use phantom loading configurations for the internal 0.5 amp load and the receptacle load.
Because of this some meter manufacturers disconnect circuitry may detect a back voltage when
trying to reconnect the meter (close the disconnect switch). It is best to disconnect any external load
that is connected and set the Load Selector to the EXTERNAL position prior to performing disconnect
tests.
Special Instructions for Connecting an External Load Box
Power the load box from same line source that the Cat 2100 is powered from. Connect the current
output from the load box to the external binding posts of the Cat 2100 (See illustration below).
Energize the meter and the load box and check the meter rotation. If the meter goes backwards,
reverse the current leads on the external binding posts and recheck.