Econ ELA100, Руководство по установке и эксплуатации

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Installation & Operation Manual Proven Quality since 1892
ECON actuator Fig. 7907, type ELA80 – 3000
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Rev.13 - January 7, 2019 14
14 | P a g e
4.7 Setting Potentiometer (Optional)
The potentiometer has been calibrated at the factory. However, if re-calibration is required, proceed as
follows:

Manually rotate the hand wheel of the actuator to the fully closed position.

While measuring the resistance between P1 (black) and P2 (blue), gently rotate the
Potentiometer Gear until it reaches between 80 - 120 Ω (100 Ω preferred), by using a flat head
screw driver.

Engage the Potentiometer Gear into the Point Shaft Gear and use an Allen key to fasten the
locking bolt of the Potentiometer Gear
.
4.8
Current Position Transmitter – CPT (Optional)
The potentiometer is used for the actuator signal feedback . It reads a resistance value w h i c h
corresponds with the current position of the actuator and transfers i t to the CPT card. The CPT
indicates the current position of the actuator throughout the complete stroke by a 4 – 20mA output
signal.
4.8.1 Standard Features
Model CPT
Power 230(115) VAC ±5%, 50/60Hz 2VA Max
Output Signal 4~20mA DC
Output Impedance 750Ω Max
Resolution Min 1/1000
Position Conversion Accuracy ±0.5 ~ ±1.5%
Ambient Temperature -20°C (-4°F) up to +70C (158°F)
Ambient Humidity
90% RH Max (Non-condensing)
Dielectric Strength
1 s at (Rated VAC x 2 + 1000) x 1.2
(from Input to power ground)
Insulation Resistance Above 500V DC 30MΩ
Vibration 10g, 0~34Hz
P1 P2
P3