Submittal Sheet

SPECIFICATIONS
SWITCH SPECIFICATIONS
Service Air and non-combustible, compatible gases.
Wetted Materials Consult factory.
Housing Material Die cast aluminum case and bezel.
Accuracy
±1.5% for 0.25 in and ±0.25 in w.c. ranges. Ranges 0.5 to 5 in w.c. and corresponding bi-directional (except
±2.5 in w.c.) ±1%; All other ranges: ±0.5% @ 77°F (25°C) including hysteresis and repeatability (after 1 hour
warm-up).
Stability < ±1% per year.
Pressure Limits
Ranges (uni- and corresponding bidirectional), ≤ 1 in w.c.: 9 psi; 2.5 and 5 in w.c.: 1.5 psi; 10 in w.c.: 3 psi; 25 in
w.c.: 8 psi; 50 in w.c.: 15 psi; 100 in w.c.: 20 psi.
Temperature Limits 32 to 140°F (0 to 60°C).
Compensated Temperature Limits 32 to 140°F (0 to 60°C).
Thermal Effects 0.020%/°F (0.036/°C) from 77°F (25°C). For 0.25 in and ±0.25 in w.c. ranges: ±0.03%/°F (±0.054%/°C).
Power Requirements 12-28 VDC, 12-28 VAC 50 to 400 Hz.
Power Consumption 3 VA max.
Output Signal 4-20 mA DC into 900 Ω max.
Zero & Span Adjustments Accessible via menus.
Response Time 250 ms (damping set to 1).
Display Backlit 4 digit LCD 0.4˝ height LED indicators for set point and alarm status.
Electrical Connections 15 pin male high density D-sub connection. 18˝ (46 cm) cable with 10 conductors included.
Process Connections 1/8˝ female NPT. Side or back connections.
Mounting Orientation Mount unit in vertical plane.
Size 5˝ (127 mm) OD x 3-1/8˝ (79.38 mm). For -SS Bezel 4-3/4˝ OD (120.7 mm) x 2-21/32˝ (67.5 mm).
Weight 1.75 lb (794 g).
Agency Approvals CE.
Switch Type 2 SPDT relays.
Electrical Rating 1 A @ 30 VAC/VDC.
Set Point Adjustment Adjustable via keypad on face.
DIMENSIONS
[4] 6-32 HOLES EQUALLY
SPACED ON A 5-1/8 [130.18]
B.C. PANEL MOUNTING
1/8 FEMALE NPT
LOW PRESSURE
CONNECTION
1/8 FEMALE NPT
HIGH PRESSURE
CONNECTION
2-1/16
[52.39]
2
[50.80]
1-1/4
[31.75]
ø4-47/64
[120.25]
Ø5
[127.00]
Ø4 [101.60]
FACE
5-1/2 [139.70] O.D.
MOUNTING RING
5/8 [15.88]
PANEL MAX
2-1/2
[63.50]
3/16
[4.76]
1/8 FEMALE NPT
HIGH PRESSURE
CONNECTION
1/2
[12.70]
1-9/32
[32.54]
11/16
[17.46]
30°
1-3/4
[44.45]
1/2
[12.70]
11/16
[17.46]
1/8 FEMALE
NPT LOW
PRESSURE
CONNECTION
[3] Ø3/16 [4.77] HOLES
EQUALLY SPACED ON A
4-1/8 [104.78] B.C.
SURFACE MOUNTING
HOW TO ORDER
SERIES
DH3 - Digihelic
®
differential pressure controller
RANGE
002: 0 to 0.25 in w.c.
003: 0 to 0.5 in w.c.
004: 0 to 1 in w.c.
005: 0 to 2.5 in w.c.
006: 0 to 5 in w.c.
007: 0 to 10 in w.c.
009: 0 to 25 in w.c.
010: 0 to 50 in w.c.
011: 0 to 100 in w.c.
013: 0 to ±0.25 in w.c.
014: 0 to ±0.50 in w.c.
015: 0 to ±1.00 in w.c.
016: 0 to ±2.50 in w.c.
017: 0 to ±5.00 in w.c.
018: 0 to ±10.0 in w.c.
OPTIONS
AT: Aluminum tag
COO: Certicate of origin
FC: Factory calibration
NIST: NIST traceable calibration certicate
SS: Brushed 304 stainless steel bezel
ST: Stainless steel tag
-004 -SSDH3
Use the bold characters from the chart below to construct a product code.
ACCESSORIES
Model Description
A-298
A-301
A-302
A-302F-A
A-370
A-489
Flat aluminum bracket for ush mounting
Static pressure tip, for 1/4˝ metal tubing connection
Static pressure tip, for 3/16˝ and 1/8˝ ID plastic or rubber tubing
303 SS Static pressure tip with mounting ange, for 3/16˝ I.D. rubber or plastic tubing. 4˝ insertion depth, includes mounting screws
Flush mount bracket. Bracket is then surface mounted. Steel with gray hammertone epoxy nish
4˝ 303 SS straight static pressure tip with ange