ENMET SPECTRUM SP - Manual (Page 4)

SPECTRUM SP Series ENMET Corporation
2
1.2 Turn Instrument ON
Turn the instrument ON, by pressing and holding the POWER / BACKLIGHT pushbutton for two seconds. The pump will
automatically activate. In uncontaminated air, for most instruments, the display should read 0000 within ten seconds of turn-
on.
N OTE : For instruments using a biased sensor, this time is extended to 4 minutes.
Stabilization may take as long as 1 hour. See Table 1 Appendix A.
1.2.1 Verify
The SPECTRUM SP is calibrated prior to shipment. However, if there is access to a source of the target gas, such as a
calibration kit, expose the sensor to the gas, and observe that the instrument is responsive.
1.2.2 Acknowledge Alarm
If the concentration of the target gas is greater than the alarm set point, the instrument indicates an alarm condition.
Acknowledge the alarm by pressing and releasing the right hand pushbutton, SELECT; this silences the audio alarm for four
minutes unless the concentration of the target gas is greater than the upper alarm limit. See Table 1 Appendix A for a list of
alarm set points and upper alarm limits for various target gases.
1.2.3 Remove Gas
Remove the source of the target gas. After the display reads zero or close to it, turn the instrument OFF, by pressing and
holding the
POWER / BACKLIGHT pushbutton for approximately three seconds. The display flashes "OFF" and then goes
blank after the pushbutton is released.
1.2.4 Contact ENMET
If the instrument doesn't operate as described, contact ENMET customer service personnel immediately.
2.0 Features and Operation
The features of the SPECTRUM SP are shown in Figure 1.
D ISPLAY An LCD upon which either the gas concentration, or prompts for the operational and
maintenance menus, are given.
P USHBUTTON S WITCHES There are three of these, as follows:
•
P OWER / B ACKLIGHT The left hand switch when the instrument is held upright with the display facing the user.
•
O PTION The middle switch.
• S ELECT The right hand switch.
These switches are used to access and utilize the operational and maintenance menus.
S ENSOR C HAMBER A small cylindrical chamber inside the instrument.
S AMPLING P ORT The membrane of the electrochemical sensor is exposed to the sample air through the
hole in the right side of the instrument.
V ISUAL I NDICATOR A Red LED which is ON whenever the target gas concentration is above the alarm point.
A Red LED which is ON whenever the sample air to the sensor is interrupted.
A Green LED which is ON whenever battery charger is connected.
A Red LED which is ON whenever a battery charger is connected
and the battery is NOT fully charged
A UDIO A LARM A buzzer that is ON whenever the gas concentration is above the alarm point, until the
alarm is acknowledged.
C OVER Front overlay contains operation information, type of gas monitored and serial number.
Retained with four screws, from bottom side.
B ATTERY The power source of the instrument, 4.8 V DC NiMH rechargeable.
C HARGE J ACK Connects with the mating plug on the charger.
B ELT C LIP Clip to outside of clothing for hands-free operation