13
INSTRUMENT WARM-UP TIME:
< 5 seconds.
MAXIMUM MEASURABLE FLOW RANGE:
133% Full Scale.
OPERATION RANGE/TURNDOWN RATIO:
0.5% to 100% Full Scale / 200:1.
MASS REFERENCE CONDITIONS (STP):
70°f & 14.696 PSIA
(other references
available on request).
MAXIMUM INTERNAL GAS PRESSURE (STATIC):
DPM07/17/37/47/57/67/77
:
120 PSIG.
"
BREEZE" Low Differential Pressure models DPM04/14/24/34/44/54
:
50 PSIG
MAXIMUM INSTANTANEOUS DIFFERENTIAL PRESSURE ACROSS INLET AND OUTLET:
DPM07/17/37/47/57/67/77
:
12 PSID.
"BREEZE" Low Differential Pressure models DPM04/14/24/34/44/54
:
9.75 PSID.
PROOF PRESSURE:
DPM07/17/37/47/57/67/77
:
145 PSIG.
"BREEZE" Low Differential Pressure models DPM04/14/24/34/44/54
:
50 PSIG.
OPERATING TEMPERATURE:
-
WRÛ&WRÛ)
MOUNTING ATTITUDE SENSITIVITY:
None.
RELATIVE GAS HUMIDITY RANGE:
0 to 100% (Non-Condensing).
INGRESS PROTECTION:
IP40.
OUTPUT SIGNALS:
Linear 0-5 (3000 min. load impedance);
Linear 0-10 (5000 min. load impedance);
Linear 4-20mA(550 maximum loop resistance).
Maximum noise 10mV peak to peak (for 0-5/0-10 output).
TRANSDUCER
INPUT
POWER:
9 to
26
Vdc,
150
mV
maximum
peak
to
peak
output
noise. Power consumption: 100 mA
maximum.
Circuit boards have built-in polarity reversal protection, and a 300mA resettable
fuse
provides power input protection.
DIGITAL OUTPUT SIGNALS:
Standard RS-232 or RS-485 (user-selected).
Optional Modbus over isolated RS-485 transceiver
.
WETTED MATERIALS:
Stainless steel, Viton® O-rings (Buena-N®, Neoprene® or
Kalrez® O-rings are optional), high temperature polyamide, alumina ceramic, epoxy,
silicone, glass, gold.
CAUTION:
Aalborg
®
makes no expressed or implied guarantees of
corrosion resistance of mass flow meters as pertains to different
flow media reacting with any components of the meters. It is solely
the customer’s responsibility to select the model best suited for a
particular gas, based on the fluid contacting (wetted) materials
offered in the different models.
