The Trek Model PD04002A is a versatile microprocessor based charged plate monitor which is ideally suited to monitor the performance of air ionizers that are used in critical wide temperature operations associated with semiconductor, LCD, electronic assembly, and other processes where static charge accumulations pose a threat to production yields and/or product quality.

The ultra sensitivity of the Model PD04002A makes this product the ideal choice in air ionizer monitor applications where small area ion collecting sensors are used to meet the requirement for high accuracy ion balance measurement to levels of less than one volt. The voltage of the charged plate is initialized prior to discharge time testing. Balance tests, positive discharge tests, and negative discharge tests can be initialized from a remote location through digital command signals.

Dimensions
122 mm W x 43 mm H x 153 mm D
(4.8" W x1.7" H x 6" D).

Weight
0.3 kg (0.6 lb).

Power
The Model PD04002A operates from a +24 V ±10% supply @ 0.21 amps.

Connection Block
Phoenix Contact Connector p/n 1740039.
Connections include:
+24 V DC power input (+),
+24 V DC return (-),
Voltage Monitor (Hi),
Voltage Monitor (Lo),
Digital Reset (plate 0),
Digital Reset (plate +), and
Digital Reset (plate-).

Charged Plate Input Connector
BNC connector.

Unit Operating Conditions Temperature
5 °C to 35 °C.
Relative Humidity
To 85%, noncondensing.

Voltage Monitor Output V
0 to +5 V DC represents a charged plate voltage of -55 V to +55 V (other scale factors are available). When the charged plate is at -55 volts, the voltage at the Voltage Monitor Output V HI is 0 V. When the charged plate is at 0 volts, the voltage at the voltage monitor is +2.5 volts. When the charged plate is at +55 volts, the voltage at the voltage monitor is +5 volts.
Accuracy
0.2% of full scale.

Digital Command Terminals
Plate (O) discharges the floating plate to zero volts.
Plate (+) precharges the floating plate to +55 V.
Plate (-) precharges the floating plate to -55V.

Positive discharge tests, Negative discharge tests, and Balance tests can be initialized from a remote location through these digital command signals. The voltage of the charged plate is initialized to +55 V or -55 V for discharge time testing or zero for balance testing.
All the above digital command inputs are at a 10 V DC High Level. A minimum of 6 mA of current sink capability is required to pull the digital command inputs to ground (0 V).

Mounting
Four (4) M4 mounting screws can be used to secure the monitor assembly from the bottom.

User Connections
Connection block and M4 ground lug.