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EM2

Limited Warranty & Limitation of Liability

Calibration Technologies, Inc. (CTI) warrants this product to be free from defects in material and workmanship 

under normal use and service for a period of two years, beginning on the date of shipment to the buyer. This 

warranty extends only to the sale of new and unused products to the original buyer. CTI's warranty obligation 

is limited, at CTI's option, to refund of the purchase price, repair, or replacement of a defective product that is 

returned to a CTI authorized service center within the warranty period. In no event shall CTI's liability hereunder 

exceed the purchase price actually paid by the buyer for the product.

This warranty does not include:
a)   routine replacement of parts due to the normal wear and tear of the product arising from use;
b)   any product which in CTI's opinion, has been misused, altered, neglected or damaged by accident or 

abnormal conditions of operation, handling or use;
c)   any damage or defects attributable to repair of the product by a person other than an authorized dealer or 

contractor, or the installation of unapproved parts on the product
The obligations set forth in this warranty are conditional on:
a)   proper storage, installation, calibration, use, maintenance and compliance with the product manual 

instructions and any other applicable recommendations of CTI;
b)   the buyer promptly notifying CTI of any defect and, if required, promptly making the product available for 

correction. No goods shall be returned to CTI until receipt by the buyer of shipping instructions from CTI; and
c)   the right of CTI to require that the buyer provide proof of purchase such as the original invoice, bill of sale or 

packing slip to establish that the product is within the warranty period.

THE BUYER AGREES THAT THIS WARRANTY IS THE BUYER'S SOLE AND EXCLUSIVE REMEDY AND IS IN LIEU OF 

ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY 

OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. CTI SHALL NOT BE LIABLE FOR ANY SPECIAL, 

INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES, INCLUDING LOSS OF DATA, WHETHER 

ARISING FROM BREACH OF WARRANTY OR BASED ON CONTRACT, TORT OR RELIANCE OR ANY OTHER THEORY.

Summary of Contents for EM2 Series

Page 1: ...Installation and Operation Manual EM2 ENTRANCE MONITOR...

Page 2: ...roduct only in the manner described in this manual If the equipment is used in a manner not specified by CTI the protection provided by the equipment may be impaired This equipment should be installed...

Page 3: ...0 Operator interface 10 Contrast 10 Home screen 10 Alarm condition 11 Status screens 11 Top Menu screen 12 Configuration mode 13 Test mode 16 In Out adjust 17 Start up 18 Maintenance 18 Specifications...

Page 4: ...he gas sensor not included is installed at the location where gas is to be detected The total distance between the sensor and EM2 and the EM2 and the power supply should not exceed 1 000 ft A calibrat...

Page 5: ...r all sensor cables Do not pull sensor wiring with AC power cables This can cause electrical interference Be sure to land the shield conductors of the sensor cables at the shield terminals of the sens...

Page 6: ...It will transition to the alarm state upon sensor alarm The alarm relay has a green status LED to show the state of the relay The green status LED indicates when the relay is energized Stand Alone and...

Page 7: ...o Ground terminal of power supply V to Signal terminal of sensor to 24V terminal of sensor to Ground terminal of sensor to Shield terminal of sensor to horn strobe or other alarm device Failsafe Off F...

Page 8: ...power supply V to Ground terminal of power supply V to case earth ground of monitoring equipment to Signal terminal of sensor to 24V terminal of sensor to Ground terminal of sensor to Shield terminal...

Page 9: ...supply into TO CONTROLLER terminal 2 Run cable from TO SENSOR terminal to the next entrance monitor 3 Repeat step 2 until you have fed through every entrance monitor in sequence 4 On the last entranc...

Page 10: ...r exit out of a field without saving changes Up Down Left Right keys are used to navigate the menu and field lists In some fields the arrow keys can be held in to dramatically increase the speed at wh...

Page 11: ...nce the signal falls below the alarm setpoint for the Reset Delay time the ALARM message will clear and the relay will return to it s resting state However if LATCHING is turned on the ALARM message w...

Page 12: ...yer of security the Top Menu screen can be turned off in the Configuration menu With the Top Menu turned off entering these three screens are only possible by using specific key combinations as descri...

Page 13: ...will shrink to fit the LCD The top and bottom lines of the LCD will fit either 10 or 19 characters depending on the font size When exiting Configuration mode take care to press the ENT key to save ch...

Page 14: ...ent Default is PPM of Decimal Points Select number of decimal points displayed on the LCD Typically a full scale range of 100 or greater will have 0 decimal places 4 mA Select zero value For most gas...

Page 15: ...e Latching Selecting Yes will allow the relay to latch recommended for equipment shutdown requiring manual reset from the keypad only after the alarm has cleared Selecting No allows the relay to reset...

Page 16: ...ut press the key and then use the arrow keys to select ALARM or OFF Once the relay output has been verified to function as intended press the ESC key to end Relay Test Note The Relay Test will automat...

Page 17: ...MA ADJ 1 000 0 PPM In 4 mA Adjust Adjust or to achieve correct zero display on the EM2 from the incoming analog signal such as a gas detector For example a 0 250 ppm detector with a 4 00 mA signal sh...

Page 18: ...e a fault if the analog input signal is below 1 mA All analog input signals over 20 mA must be considered high gas concentrations Start Up All gas detection systems should be calibrated with certified...

Page 19: ...ften cable wires can be prone to breakage where they connect at the wire terminals 3 Relay The Form C dry contact relay is de energized in the normal state continuity between C and NC unless Failsafe...

Page 20: ...s and washdown locations Powder coated aluminum mounting plate Temperature Range 40 F to 122 F 40 C to 50 C Humidity Range 0 to 100 condensing Sensor Inputs 1 4 20 mA 261 Ohm input impedance Analog Ou...

Page 21: ...uct by a person other than an authorized dealer or contractor or the installation of unapproved parts on the product The obligations set forth in this warranty are conditional on a proper storage inst...

Page 22: ...22 EM2...

Page 23: ...23 EM2...

Page 24: ...ctiengineering com 866 394 5861 CT2 DOC1 1 20200109...

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