ENMET CD-1300-ST User Manual

ENMET Corporation

PO Box 979
Ann Arbor, MI 48106-0979

www.enmet.com

CD-1300-ST Series

CO2 Sensor/Transmitter

Manual

Manual Part Number
80003-134

MCN-13-004, 06/24/13

Table of Contents

1.0 I

NTRODUCTION

1.1 Unpack.............................................................................................................................................................. 1

1.2 Check Order ..................................................................................................................................................... 1

1.3 Serial Numbers ................................................................................................................................................. 1

2.0 F

EATURES

2.1 Display and Indicators ...................................................................................................................................... 2

2.2 Specifications ................................................................................................................................................... 2

3.0 I

NSTALLATION

3.1 Removal of Cover............................................................................................................................................. 3

3.2 Mounting .......................................................................................................................................................... 3

3.3 Wiring ............................................................................................................................................................... 3

3.3.1 Power supply .......................................................................................................................................... 4

3.3.2 Signal Output .......................................................................................................................................... 4

3.3.3 Voltage ................................................................................................................................................... 4

3.3.4 Current ................................................................................................................................................... 4

3.4 Verifying Voltage or Current Output Connection ............................................................................................ 4

3.4.1 Cover Replacement ................................................................................................................................. 4

4.0 F

IELD ADJUSTMENTS

4.1 Analog Output Range Adjustment.................................................................................................................... 5

4.2 Altitude Correction ........................................................................................................................................... 6

4.2.1 Altitude Correction Procedure ............................................................................................................... 6

5.0 C

ALIBRATION

5.1 Verification Procedure ...................................................................................................................................... 6

5.2 High CO2 Limit ................................................................................................................................................ 7

5.2.1 Adjusting the High CO2 Limit ................................................................................................................. 7

5.2.2 Optional High Limit Contact .................................................................................................................. 7

5.2.3 Setting High Limit Contact Polarity ....................................................................................................... 7

6.0 D

UCT SAMPLING OPTION

6.1 Overview .......................................................................................................................................................... 8

6.1.1 Duct Kit Contents ................................................................................................................................... 8

6.1.2 Duct Kit Installation ............................................................................................................................... 8

7.0 WARRANTY ........................................................................................................................................... 9

.......................................................................................................................................... 1

................................................................................................................................................. 2

........................................................................................................................................... 3

................................................................................................................................. 5

............................................................................................................................................ 6

........................................................................................................................... 8

List of Illustrations

F

IGURE 1:

F

IGURE 2:

T

ABLE 1: ALTITUDE CORRECTION

F

IGURE 3: DUCT SAMPLING SCHEMATIC

F

IGURE 4: DUCT PROBE INSTALLATION DIMENSIONS

CD-1300-ST S
CD-1300-ST S

ERIES, MOUNTING DIMENSIONS
ERIES COMPONENT LOCATION

................................................................................. 3

.................................................................................. 3

..................................................................................................................... 6

........................................................................................................... 8

......................................................................................... 8

CO2 Sensor / Transmitter ENMET Corporation

1.0 Introduction

The CD-1300-ST Series Sensor/Transmitter (S/T) are a non-dispersive infrared analyzer for measuring environmental CO2
concentration in ventilation systems and indoor living spaces. Its measurement range of 0 – 2000 ppm (parts per million;
1000ppm = 0.1%) covers the range required to monitor compliance with ASHRAE or other ventilation efficiency standards.
For optional range of 0 – 5000 ppm see section 4.1 Analog Output Range adjustment.

Packaged in a compact, distinctively styled enclosure, the CD-1300-ST Series can be discreetly installed anywhere from the
board room to the boiler room. Standard center wiring access and fully floating outputs make installation a snap. The CD­1300-ST Series provides several output alternatives. A voltage or 4 - 20 mA current output is standard. An optional LCD
readout is available. An optional relay contact can be configured to open or close above a user-adjustable setpoint. A simple
one-point calibration procedure and a built-in calibration port that requires no special fittings or adapters make the CD-1300-ST
Series simple to maintain.

N

OTE

: All specifications stated in this manual may change without notice.

1.1 Unpack

Unpack the CD-1300-ST series and examine it for shipping damage. If such damage is observed, notify both ENMET
customer service personnel and the commercial carrier involved immediately.

Regarding Damaged Shipments

N

OTE

: It is your responsibility to follow these instructions. If they are not followed, the carrier will not honor

any claims for damage.



This shipment was carefully inspected, verified and properly packaged at our company and delivered to the carrier in
good condition.



When it was picked up by the carrier at ENMET, it legally became your company’s property.



If your shipment arrives damaged:

• Keep the items, packing material, and carton “As Is.” Within 5 days of receipt, notify the carrier’s local office and

request immediate inspection of the carton and the contents.

• After the inspection and after you have received written acknowledgment of the damage from the carrier, contact

ENMET Customer Service for return authorization and further instructions. Have your Purchase Order and Sales
Order numbers available.



ENMET either repairs or replaces damaged equipment and invoices the carrier to the extent of the liability coverage,
usually $100.00. Repair or replacement charges above that value are your company’s responsibility.



The shipping company may offer optional insurance coverage. ENMET only insures shipments with the shipping
company when asked to do so in writing by our customer. If you need your shipments insured, please forward a written
request to ENMET Customer Service.

Regarding Shortages

If there are any shortages or questions regarding this shipment, please notify ENMET Customer Service within 5 days of
receipt at the following address:

ENMET Corporation

680 Fairfield Court

Ann Arbor, MI 48108

734-761-1270 734-761-3220 Fax

1.2 Check Order

Check, the contents of the shipment against the purchase order. Verify that the CD-1300-ST series is received as ordered. If
there are accessories on the order, ascertain that they are present. Check the contents of calibration kits. Notify ENMET
customer service personnel of any discrepancy immediately.

1.3 Serial Numbers

Each CD-1300-ST series is serialized. These numbers are on tags on the equipment and are on record in an ENMET database.

1

CO2 Sensor / Transmitter ENMET Corporation

2.0 Features

2.1 Display and Indicators

The basic CD-1300-ST Series has a single green LED on the front panel which illuminates whenever the unit is operating.
This LED is on steadily when the measured concentration is below the high CO2 limit, and blinks whenever the concentration is
above the limit.

The standard factory high limit is 1000 ppm, but can be easily adjusted in the field. The procedure for adjusting the high CO
limit is described in Section 5.2.

The display option adds a 4 digit liquid crystal display (LCD) to the front panel. The display shows the measured CO2
concentration in parts per million (ppm). 1000 parts per million equals 0.1%.

2.2 Specifications

2

Operating principle
Gas sampling method
Measurement range
Typical drift (per year)
Accuracy
Repeatability
Recommended Calibration Interval
Response time
Operating temperature range

Operating humidity range
Storage temperature

Power requirements
Power consumption
Calibration adjustments
Calibration verification time
Dimensions
Voltage output (linear)
Current output (linear)

Warm-up time
Weight
Optional Digital Display
Optional
High Limit
Contact

setpoint range
contact polarity

contact rating
Operating life expectancy
Warranty

Non-dispersive infrared (NDIR)
Diffusion or sample draw
0 – 2000 ppm CO2, Optional 0 – 5000 ppm
±75 ppm (@ 1200ppm)
±5% of reading or ±75 ppm, whichever is greater
±20 ppm
One Year
Less than 1 minute
0 to 50 ° C
0 - 90% RH (non condensing)

-30 to + 60 ° C
20 – 28 V

RMS

AC, 18 - 30 VDC

Less than 2W @ 24 VAC
Span only (offset electronically nulled)
10 minutes typical

5.2" x 3.2" x 1.4"
0 – 10 volts DC standard
4 - 20 mA (R

≤ 500Ω)

L

3 minutes

6.5 Oz. (0.35 Kg)
4 digit, .35" LCD
0 to full scale
jumper selectable
2A @ 24 VAC
10 years typical
12 months, parts and labor through repair or exchange

N

OTE

: All specifications stated in this manual may change without notice.

2