KELLER LEO1 Digital Manometer with Optional Peak Pressure Value Detection User Manual
- June 9, 2024
- KELLER
Table of Contents
LEO1 Digital Manometer with Optional
Peak Pressure Value Detection
User Manual
Digital Manometer with optional Peak Pressure Value Detection and Min.-/Max.-Display.
Description
Digital manometer with optional peak pressure value detection and Min.-/Max.-
pressure indication.
The technical data of the digital manometer can be taken from the
corresponding data sheet or from the agreed specifications.
Turn-On and Functions
LEO1 has two operating keys. The left key (SELECT) serves to select the functions and the pressure units. The right key (ENTER) activates the selected function or pressure unit. The right key is also used to switch between the Min.- and Max.-pressure value.
Turn-on:
Pressing the SELECT key turns the instrument on. The instrument first displays
the full-scale pressure range (top display) and the software version
(year/week). The instrument is then ready for use and indicates the actual
pressure (top display) and the last measured Max. pressure value (bottom
display).
The instrument has the following functions:
RESET: Min.-/Max.-value are set to the actual pressure.
OFF: Turns off the instrument.
MANO: Releases the following functions:
ONLY FOR LEO1 WITH PEAK
PEAK off: Normal measuring mode with 2 measurements per second.
or
PEAK on: Fast measuring mode with 5000 measurements/sec.
END OF PEAK FUNCTION
ZERO SET: Sets a new pressure zero reference.
ZERO RES: Sets the pressure zero to factory setting.
CONT on: Deactivates the automatic turn-off function.
CONT off: Activates the automatic turnoff function (the instrument turns
off 15 minutes after the last key operation),
…followed by the unit selection: bar, mbar, hPa, kPa, MPa, PSI, kp/cm²
Example: Setting a new Zero Reference:
- Turn on the instrument by shortly pressing SELECT.
- Wait for the instrument’s measuring mode (≈ 3 s).
- Press the SELECT-key 3 times: MANO appears.
ONLY LEO1 WITH PEAK:
- Press ENTER: PEAK on or PEAK off appears.
LEO1 WITHOUT PEAK:
- Press SELECT: ZERO SET appears.
- Press ENTER: The new Zero reference is set. The instrument returns to the measuring mode.
Display of the Minimum Value
When in the measuring mode (Display: Actual Pressure and Max. pressure value), you may display the Min. pressure value for 5 seconds by shortly pressing the ENTER-key.
Notes
-
The functions and units can also be called up by keeping the SELECT-key depressed.
Releasing the key enables the displayed function or unit to be activated with the ENTER-key. -
If the selected function or unit is not activated within 5 seconds with the ENTER key, LEO1 returns to the measuring mode without changing any settings.
-
Turning LEO1 on and off does not influence any of the previous settings.
-
If the CONT on function is activated (with option LEO1 PEAK: PEAK on), it is indicated with a flashing sign on the display (OFF flashes when CONT on is set).
-
If a pressure can not be represented on the display, OFL (overflow) or UFL (underflow) appears on the display.
-
If the actual pressure goes beyond the measuring range, the last valid pressure value starts flashing on the display (overload warning).
-
Temperatures outside of 0…60 °C could impair the readability of the display.
Installation
The installation must be carried out by qualified personnel only. Screw the LEO1 into the female pressure port and tighten using the hexagon of the transducer (pressure connection) (max. torque 50 Nm). The transducer is secured to the housing by a lock nut.
Aligning the face:
Slacken the lock nut at the housing using two open-ended spanners. The display
of the LEO1 can now be rotated in relation to the transducer. Move the face
to the desired position and tighten the lock nut.
The LEO1’s display can be turned almost 180° to the left and right. The lid of the lower housing can then be opened. ATTENTION: Turning the display more than 180° may damage the wires.
Battery Change / Battery Life
When the battery is low, the battery symbol (BAT LOW) appears on the display.
Battery change: Battery change: Please turn off the instrument before changing the battery. Open the instrument by turning the display ring beyond the limit stop. Open the battery compartment and replace the battery (type CR 2430).
When reassembling, make sure that the O-ring remains imbedded in the cover.
Please note: This manometer is equipped with a battery (Type CR2430)
installed.
Please use a coin for opening the battery box to prevent damage to the battery
cover.
Dispose of discharged batteries properly, where they are to be picked up by a
qualified waste management company. Place replacement battery between the
contact springs, paying attention to the polarity (positive pole facing up).
Close the cover plate by hand, if possible.
FOR THE OPTION WITH LEO1 PEAK:
Measuring Procedure of the Peak-Mode (5000 meas./s)
Ranges / Calibration
The ZERO-function allows to set any pressure value as a zero reference.
The factory setting of the pressure zero for the ranges ≤ 61 bar absolute is at vacuum (0 bar absolute). For relative pressure measurements, activate “ZERO SEt” at ambient pressure.
Instruments with ranges over 200 bar are calibrated at 1 bar abs as a zero reference.
General Safety Instructions
When installing and operating the digital manometer, attention should be paid to the corresponding safety regulations.
Only mount the digital manometer onto unpressurized systems.
On pressure ranges ≥ 61 bar, the pressure connections could show residual hydraulic oil.
Please also note the corresponding data sheet.
Accessories, Spare Parts
| • Battery Renata CR2430, Lithium 3,0 V | Order Number | 557005.0001 |
|---|---|---|
| • Protective rubber covering | Order Number | 309030.0002 |
| • Carrying bag | Order Number | 309030.0003 |
EU / UK DECLARA TION OF CONFORMITY
Herewith we declare, that the following products
Digital Manometer LEO1
comply with the requirements of the following EU/UK Directives:
Directive EMC 2014/30/EU
Directive RoHS 2011/65/EU and Commission Delegated Directive (EU) 2015/863
UKSI 2016:1091
UKSI 2012:3032
The Digital Manometer LEO1 comply with the following standards:
EN IEC 61000-6-1:2019 EN IEC 61000-6-2:2019 EN IEC 61000-6-3:2021 EN IEC
61000-6-4:2019 EN 61326-1:2013 EN 61326-2-3:2013
This declaration is given for the manufacturer:
issued by:
Jestetten, 14.09.2022
Bernhard Vetterli
Technical Director| Quality Manage
---|---
with legally effective signature
KELLER Druckmesstechnik AG
CH-8404 Winterthur
+41 52 235 25 25
[email protected]
Version | Edition 02/2023
www.keller-druck.com