Telaire T1508 Data sheet

Accessory Enclosures

For the Ventostat 8000 Series

Outside Air

Splash Resistant Enclosure

Telaire® offers three accessory enclosures
that are designed enhance the 8000
Series Ventostat® CO2 Sensor/Controller
in specialized applications.

Model 1508 Aspiration Box:
Designed for in-duct sampling of CO2 in
flow rates greater than 400 fpm.

Model 1505 Splash Resistant Enclosure:

Designed to protect the 8000 series in
damp or wet environments as might occur
in agricultural, industrial or food process­ing environments.

Duct Mount Aspiration Box

Shown with

Sensor Installed

Model 1551 Outdoor Air Enclosure:

A weatherproof enclosure designed to
allow the 8000 series sensor to operate in
an outdoor environment and/or where
ambient temperatures are below freezing.
Ideal for monitoring outside air or CO2 as a
surrogate for combustion fumes in parking
garages, tunnels and loading docks.

Enclosures are sold separately from CO2
sensor/controllers

F0144-1

A Division of Edwards Systems Technology

PinDesignations

1.AC+

/
DC+

2.AC-

/
GND

1508 Aspiration Box

○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○○

The Model 1508 is designed for
in-duct sampling of CO2 con­centrations at flow rates greater

than 400 fpm. Clear cover al­lows for observation of the sensor. Will ac­commodate any wall mount model of
Telaire® Ventostat® 8000 series. Enclosure is
screwed to the duct with probe inserted into
airstream. Air sampling probe is 1 in diam­eter and 8 long. Enclosure (ABS plastic) has
knockouts for conduit connection. Note:
Wiring penetrations must be sealed prior to
use. CO

2 sensor not included.

Tubing on 1508 Only

1505 Splash Resistant Enclosure:

The Model 1505 is designed to
protect the 8000 series in damp or
wet environments as might occur in

agricultural, industrial or food pro­cessing environments. This enclosure (ABS
plastic) is designed to protect the sensor from
dripping or sprayed water. Any wall mount
model of the Telaire® 8000 series sensor can
be installed inside the enclosure. The trans­parent cover allows for viewing of the sensor/
display. Four diffusion ports allow for entry of
CO2. Knockouts are provided for conduit
connection. Response time of the sensor is
slowed to approximately 30 minutes to mea­sure a 90% step change in concentrations.
Enclosure is designed to screw directly to a
wall. CO

2 sensor not included.

1551 Outside Air Enclosure:

The Model 1551 is a rugged weath­erproof enclosure (ABS plastic), de­signed to allow the 8000 series

sensor to operate in an outdoor en­vironment and/or where ambient tempera­tures are below freezing. The 1551 is ideal for
monitoring outside air or CO2 as a surrogate
for combustion fumes in parking garages, tun­nels and loading docks. This enclosure fea­tures a temperature control circuit and
internal heaters to maintain the sensor within
its normal operating temperature range, even
if temperatures outside the enclosure are as
low as -20 F (-29°C). Four diffusion ports allow
for entry of CO2. Response time of the sensor is
slowed to approximately 30 minutes to mea­sure a 90% step change in concentrations.
Enclosure is designed to screw directly to a
wall. CO2 sensor not included.

Power Consumption: 24V, 1.5 Amp (max) ­including Ventostat® 8000 series

Cross Reference: The Model 1551 Outside
Air Enclosure combined with a Telaire
Ventostat® 8000 series meets or exceeds the
performance requirements of the Telaire

®

®

Model 2051 Outside Air Enclosure.

PinDesignations

1.Not Used

2.Not Used

3.Relay Norm

4.Relay Common

5.Relay Norm

6.4-20mA Output

7.Signal Ground

8.0-10V Output

PinDesignations

Open

1.AC+ / DC+

2.AC- / GND
Closed

PowerRequirem

18-36VAC

18-42VDC

100m

70
m

A

A

Peak,

avg@

rmsor

ent

24

s

VDC

Products Compatible with
Accessory Enclosures

8001 8001B
8002 8002B

®

8101 8101B
8102 8102B

Mounting Bracket

(Pre-Installed on the 1551)

8502

6 1/2"

Cover Removed

3 3/4"
4 1/4"

Spouts on

1505 and 1551 Only

7"

Any of the Ventostat
8000 Series Sensors

3.5"

10 1/2”

Cover

Extension Tube

on 1508 Only

1 1/8" and 1 1/16"

7/8"

6489 Calle Real Goleta, CA 93117

805.964.1699 FAX [phone]
1-800-472-6075 - www.telaire.com

It is our intention to keep the product information

1 1/8"

7”

current and accurate. We can not cover spe­cific applications or anticipate all requirements.
All specifications are subject to change without
notice. For more information or questions rela­tive to this Specification Sheet, contact Telaire.

©

Copyright 1998-2000 Telaire

Covered by United States Patents:
5,060,508 and 5,163,332