Setra SRIMV Operating Manual

Setra Velocity Monitor

SRIMV

Installation and Operation Manual

Table of Contents

1.0 Features and Intended Use

2.0 SRIMV Included parts

3.0 Installation

4.0 Menu Navigation and Configuration

5.0 Setting up the SRIMV menu

1.0 FEATURES

The SRIMV is a multi-mode (air velocity, flow, pressure, temperature and humidity) monitor. It has a 3 color ba cklight display, a digital input for a door switch, 2 analog inputs for temperature and humidity, 1 relay output for remote alarm indication and an internal p ressure sensor. It can display and alarm on Velocity, Flow, Pressure, Temperature and Humidity parameters.

User Interface

• Large LCD 2 line display shows values of the monitored parameters

• Green (Normal), Yellow (Warning), Red (Alarm) Backlit display for indicatin g the status

• Membrane keypad for ease of configuration and men u navigation

• Password Protection for security

Audible Visual and Remote Alarms

• Color Backlight LEDs

• Alarm on Pressure, Velocity, Flow, Temperature and Humidity

• Audible Buzzer

• Alarm delay, mute timeout, alarm enable/disable, buzzer enable/disable

• SPDT Relay for remote alarms, including Setra Remote Annunciator (SRAN)

Ease of Installation and Calibr a tion

• Flush mount (mounts flush to wall surface) and duct mount (surface mount) versions; both are

wipe-down compatible for decontamination

• Rotate-able pressure fittings to eliminate crimping of pressures hoses, allows installation

flexibility

• Snap on cover, no visible fasteners

• Modular plug-in design using sub-base. Simultaneous electrical and plumbing connections

reduce initial installation and c a libration costs. Unit can be calibrated in house or sent for calibration service without removing the wiring or plumbing

• Push button zero and span calibration, no potentiometer adjustments

• PG9 and Conduit fitting in same unit, field sele c ta ble

Versatile

• Field selectable outputs, 4-20 mA, 0-5 VDC or 0-10 VDC

• One unit that can be field configurable for almost all duct and room measurement applications

2.0 SRIMV Included Parts

Fig. 2-1 Parts Provided

The SRIMV parts list includ e s:

• SRIMV Velocity Monitor

• Accessories: ordered separately

For Velocity and Flow measurement a Pitot tube, averaging probe or flow station is required as an input to the pressure ports on the SRIMV. Setra offers the following averaging probe. Averaging Flow sensor: Part # 242915-xx

The SRIMV can be used with any manufacturer’s probe. The “k” factor flow coefficient must be entered into the SRIMV at commissioning. T he d e fault setti ng as shipped is K=1. K factor changes based on probe length.

Installation

The 242915-xx units utilizes 1/4  ID, 3/8  OD tubing. First check that there are no sharp bends in the tubing at any connection. Connect the “H” Po rt to the high input on the SRIMV units. Conne ct the “L” Port to the low input on unit.

Approximate K factors for models:

242915-01: 1.32 242915-02: 1.39 242915-03: 1.46 242915-04: 1.46 242915-05: 1.58 242915-06: 1.67

Mounting

1. Install the unit horizontally to ensure accurate readings fo r units ranging from 3-5/32  to 9-29/32 . If using a unit longer than the 242915-05, which is 9- 29/32 , vertical mounting is recommended.

2. Determine the duct’s flow direction and install the model 2429150-xx based on the unit’s flow arrow imprint.

3. Cut a 7/8  hole in the ducting to accept the unit; tip should be at least to the center of duct.

4. Attach using two self-tapping screws inserted in the 3/16  mounting hoes.

3.0 Installation

The SRIMV is available i n two models suitable for wall (flush mount) and surface mounting (panel mounting). The front panel of the product and the rear housing are snapped together. The two snaps are located on the left and right sides of the front p a nel. A 1.5mm（1/16 inch）Allen wrench or paper clip can be used to open the concealed snap fastening system. The rear housing can be used to mount to a wall or into a 3 gang “off the shelf” electrical box. Conduit (1/2”) or a PG9 cable connection are available for wiring to the terminals at the rear of the unit. The rear housing acts much li ke a thermostat sub-base that does not have to be removed once installed. The front bezel contains the pressure sensor, PCBA and display. It is a complete module that can be calibrated. The pressure and electrical connectors are disconnected simultaneously when the front bezel is removed.

Before installing, determine a good installation location. For flush mount applications, the corridor outside the room i s preferred. For surface mount applications the unit may be mounted on the duct work (avoid high vibration), a stable surface near the ductwork or inside a panel.

Fig 3-1 Wall (Flush) mount housing dimensions, front view

Fig 3-2 SRIMV Wall (Flush) mount ho us ing rear

view of pressure fittings and elec trical terminations

Unpack the product box. Do not remove the protective film on the fro nt d isplay screen until after installation to prevent scratching of the display during the installation process. Remove parts and place them on flat surface. Apply pr essure on the side of the box to open the snap fit or use an Allen wrench or paper clip as shown See Figure 1-2. First one side then the other, then pull the bezel forward to remove it fr om the housing.

Fig. 3-4 Removing bezel from the base

Plumbing and Wiring to the Electrical Box (Rough in)

Flush mounting:

Use a 3 gang electrical box RACO 697 or equivalent or mount directly into the wall. If mounting directly into the wall create an opening approximately 2.8” (71 mm) by 5.4” (134 mm). If using the 3 gang bo x use #6 machine screws to mount the ears o f the SRIM rear housing to the electrical box. If mounting directly into the wall without an electrical box, use drywall screws to mount the 4 ears of the SRIMV box to the wall.

Fig. 3-5 Rough Plumbing and Wiring to Rough-in box, Flush Mount Uni t

Fig. 3-6 Wiring Diagram SRIMV

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