Contact Lickometers

ENV-250
Contact Lickometer Controller

This contact lickometer controller has both the inputs and outputs which are 28 V DC controlled. Input impedances of up to 10 megaohms are possible with a subject current of only 0.3 microamps. The device and the grid floor cable
will connect to the input connector and the output drinking connector will plug directly into an open input on your choice of connection panel, such as SmartCtrl™. When the circuit is complete, meaning animal is touching the grid floor and licking the tube, a signal will be sent to the computer and an input count will register. Circuit must be complete to receive an input count.

Dimensions:
2.7" W x 3.8" L x 1.4" D (6.9 cm x 9.7 cm x 3.6 cm)

ENV-250A
Switching Contact Lickometer Controller

This unit is a complete lickometer unit that will also switch a direct aversive stimulation output to the sipper tube spout. The switching relay is activated by 28 V DC ground. The lickometer input is automatically disabled when aversive stimulation is applied to the sipper tube. Aversive stimulators and cables (SG-219G and SG-219N cables) are sold separately.

Dimensions:
2.7" W x 3.8" L x 1.4" D (6.9 cm x 9.7 cm x 3.6 cm)

ENV-250S
Lickometer Grid Switch

This unit is offered as an alternative to the switching contact lickometer controller (ENV-250A). The lickometer grid switch does not include the lickometer amplifier and must be used with one of the standard lickometers (ENV-250, ENV-250B or ENV-250C). It will switch each of the nine leads of the grid harness between the lickometer amplifier and the nine outputs of the solid state grid floor scrambler (ENV-412). This permits the delivery of scrambled foot aversive stimulation with any of the three lickometers listed. Lick data collection is momentarily interrupted during aversive stimulation delivery. For continuous data collection during aversive stimulation delivery it would be necessary to use one of the photobeam lickometers (ENV-251L or ENV-251M).

Dimensions:
5" W x 5" D x 1.75" H (12.7 cm x 12.7 cm x 4.4 cm)

ENV-250B
Dual Contact Lickometer Controller

ENV-250C
Triple Contact Lickometer Controller

These lickometer controllers allow you to record licks from two or three drinking devices. The drinking devices must all be installed on the same chamber. The grid floor of the chamber must have a harness. A cable connects from the harness to the lickometer control box (SG-219G2, sold separately). The device and the grid floor cable will connect to the input connector and the output drinking connector will plug directly into an open input on your choice of
connection panel, such as SmartCtrl™. When the circuit is complete, a signal is sent to the computer registering a count. These lickometers are not suitable for aversive stimulation suppression.

Dimensions:
2.7" W x 3.8" L x 1.4" D (6.9 cm x 9.7 cm x 3.6 cm)

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