Loop-Powered Trip Alarm/ Current Loop Alarm ADTECH Analog-Digital Technology, Inc. The Adtech CLA 114 Loop-Powered Trip Alarm accepts 4-20 mA DC input and provides a relay contact output. The CLA loop-powered alarm does not require a separate DC or AC power supply source as conventional alarms do. It accepts the standard process current signal of 4-20 mA DC and provides a SPDT contact output, or optionally, a DPDT contact output. Both are rated 4 amps, 30 VDC or 250 VAC resistive for either high- or low-alarm configuration. The CLA 114 has 0-100% adjustable set point and a 0.5% fixed dead band. Option O 46S provides a 1-100% adjustable dead band. It has an input voltage drop of 7 VDC, which represents a 350 ohm input impedance to a 4-20 mA signal at full scale. Two indicating LEDs are standard to the CLA. When the input signal exceeds the set point, a red pulsing LED comes on. A pulsing green LED indicates the magnitude of the input signal. The pulse rate increases with an increasing input signal. This unique feature provides a visual indication of the relative signal level at a glance. When the input exceeds the set point, the green LED turns off, and the red LED turns on. DIN mounting is supplied as standard. Surface mount (Option H 26) and snap track (Option H 25) are available at no extra cost, specify. ALARM STATUS Red LED 4-20 mA DC INPUT SET POINT DEAD BAND OPTION O 46S CLA 114 Typical Applications * General limit detector of DC current signal inputs *On/off controller *Alarm or shutdown of process variables *Machine and process protection *Contact inputs to annunciators, lights, and horns *Tank-filling applications with dead band option ALARM STATUS Green LED INPUT CONDITIONING AND COMPARATOR Model No. RELAY DRIVER DPDT option O 49 FEATURES * No External Power Source: Loop powered, 28 mW at 4 mA from input loop * DC Current Inputs: 4-20 mA * Repeatability: 0.1% of span * Relay Action: High- or low-trip * Output Contacts: 4 amp, SPDT--standard; 4 amp, DPDT--optional * Input Signal Status: Green LED * Alarm Status: Red LED * Adjustable Dead Band: 1-100%--optional * Isolation: 1,500 VAC input to output contacts Connections/Dimensions .98 (25.0) "G" RAIL MOUNTING DIN EN 50 035 (32mm, 15mm) "T" RAIL MOUNTING DIN EN 50 022 (35mm, 7.5mm) DIN EN 50 022 (35mm, 15mm) (+) 4-20 mA Input (-) CL CL ADTECH - + 1.56 (39.7) INPUT 1.56 (39.7) SP DB ALRM NORM 3.68 (93.4) (with option O-49 only) 0.58 (14.9) (with option O-49 only) 3.11 (79.0) ADTECH CLA 114 1.54 (39.0) LOOP PWR ALARM OUTPUT KB OUTPUT KA Option O 49 WIRE INSERTION 3.36 (85.0) 3.55 (89.7) 3.65 (92.5) 0.63 (16.0) N.C. Comm. N.O. Term block with option O-49 only 0.47 (11.9) SLOT FOR "T" RAIL RELEASE "T RAIL MOUNTING DIN EN 50 022 (35mm, 7.5mm) "G" RAIL MOUNTING DIN EN 50 035 (32mm, 15mm) "T" RAIL MOUNTING DIN EN 50 022 (35mm, 15mm) Input/Output Input Signals: 4-20 mA DC Output Signals: Standard: SPDT output contact, rated 4 amps at 30 VDC or 250 VAC rseistive Optional: DPDT output contact, rated 4 amps at 30 VDC or 250 VAC resistive: (Option O 49) Performance Repeatability: 0.1% of span Trip Point Stability: Zero and span 0.005%/F typical, 0.01%/F maximum for a 50F change from ambient Trip Adjustmant: 0-100% of span continuously adjustable; blind set: infinite resolution Fixed Dead Band: Factory set at 0.5% of span or setting (specify) Adjustable Dead Band: 1% to 100% of span (specify), continuously adjustable; blind set Response Time: Less than 200 milliseconds Temperature Range: 0 to 140F (-18 to 60C) operating; -40 to 185F (-40 to 85C) storage Input Voltage Drop: 7 volts nominal Note: All accuracies are given as a percentage of span. Power Mechanical Options Ordering Information * * * * Model number High or low alarm Electrical options Housing and miscellaneous options Please refer to the Housing and/or Option Section for more specific and detailed information. External Power: None Electrical Classification: General purpose Connection: Screw compression type accepts up to 14 AWG Controls: Multiturn setpoint, (optional) deadband and jumpers for relay action Option Number O 46S O 49 H 15D H 25 H 26 H 27 H 29 H 30 Mounting: DIN:Optional surface, snap track or Nema 4 & 7. Weight: Net unit: 4 oz (115 grams) Shipping: 7 oz (200 grams) Description Adjustable blind set dead band DPDT contacts Explosion Proof: Class 1, Group B, C & D Snap-track Mount (Specify) Surface Mounting (Specify) NEMA 4 Enclosure T 35 DIN "T" rail--2 ft. long T 32 DIN "G" rail--2 ft. long Represented by: ADTECH Analog-Digital Technology, Inc. 3750 Monroe Avenue Pittsford, New York 14534-1302 Phone: (716) 383-8280 Fax: (716) 383-8386 Internet: ainc847401@aol.com AOL: AInc847401 Information subject to change without notice. Printed in U.S.A. #A097A