| Optical Meter Relays/Rear mount control module 2.5, 3.5 and 4.5" Rectangular, 195 and 196 Series |
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Totally new, contactless control action. Solid state, light-sensitive switch results in exceptional control simplicity and reliability. Unique rear mount control module. Plug-in design means troublefree time-saving installation. Two exciting styles from which to choose. Each meter relay consists of an indicator with single and double setpoints. Each setpoint features a DPDT load relay. |
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| The 195 and 196 Series contain an exclusive solid state, light-sensitive
switch that provides the ultimate in control simplicity and reliability. This switch
controls the load relay directly; no amplifier, no pointer contacts or mechanical
interface with meter movement. With these meter relays, pointer travel is
unrestricted across the entire scale for continuous indication above and below
setpoints. Control action is dependable and repeatable over entire scale range. Meter relays feature a unique rear mount control module on all 3.5" and 4.5" styles. This design eliminates the need to mount and wire separate components and speeds up and simplifies installation. The plug-in control module mounts directly on rear of indicator with no soldering or complicated connections. The control module may be removed if necessary without interrupting the measurement circuit. ON-Off or Alarm control. Each meter relay is engineered for On-Off (automatic reset) control action. For alarm latching (manual reset) control, simply remove jumper wire from terminals at rear of control module and substitute a normally open momentary switch. 117 volt AC operation No special power supply needed...simply connect to 117 volt, 50- or 60Hz source. Long lamp life Because lamp is operated well below rated voltage, life expectancy is conservatively estimated at 5 years. Safe Operation. In the event of component failure or loss of control power, energized setpoint relays immediately de-energize. Control Module mounting Rear mount standard when used with 3.5" or 4.5" indicator (may be remotely mounted using accessory kit) Remote mounting required When used with 2.5" Model 1952 indicator. Accessory kit included as standard. |
Specifications: Except as noted, the following specifications cover meter relay function only - i.e., all values given for accuracy, repeatability, etc., are exclusive of basic meter performance. Setpoint coincidences ±2 % of full scale at 117VAC input power (maximum difference in indications of setpointer and indicating pointer when control action occurs). Repeatability 0.3% of full scale Setpointer Travel 100% of full scale travel; double setpointers can be positioned to within 2 mechanical degrees of each other - approximately 2.2% of full scale. Minimum Span 0-20µA Input Power 117VAC 䔮%, 50/60Hz: 7.0 volt amperes maximum. Lamp De-rated to provide 5 year life, typical. Load Relay DPDT per setpoint Contact Rating 5 amperes AC noninductive at 120 volts 5 amperes DC noninductive at 28 volts 0.2 amperes DC noninductive at 125 volts Options Limit lights and manual reset switch available with 4.5" 196 Series. Bezel available with 3.5" and 4.5" 196 Series. |
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| Ranges:Any DC or AC volt or amp range can be monitored. For ranges that exceed those listed below, external signal conditioning devices including voltage multipliers and transformers as well as current shunts and transformers are available. Intermediate ranges are also available. |