Pyxis SP-700B Installation manual

SP-700B Water Multimeter
Operation Manual
Jun 2, 2017
Rev. B
Firmware version 1.3.0r222
US Patent: 9612221
Pyxis Lab, Inc.
120 Jeffrey Ave.
Holliston, MA 01746 USA
www.pyxis-lab.com
© 2017 Pyxis Lab, Inc.
Pyxis Lab Proprietary and Confidential

The information contained in this manual may be confidential and proprietary and is the property of Pyxis Lab, Inc.
Information disclosed herein shall not be used to manufacture, construct, or otherwise reproduce the goods
described. Information disclosed herein shall not be disclosed to others or made public in any manner without the
express written consent of Pyxis Lab, Inc.
Limited Warranty
Pyxis Lab warrants its products for defects in materials and workmanship. Pyxis Lab will, at its option, repair or
replace instrument components that prove to be defective with new or remanufactured components (i.e.,
equivalent to new). The warranty set forth is exclusive and no other warranty, whether written or oral, is
expressed or implied.
Warranty Term
The Pyxis warranty term is thirteen (13) months ex-works. In no event shall the standard limited warranty coverage
extend beyond thirteen (13) months from original shipment date.
Warranty Service
Damaged or dysfunctional instruments may be returned to Pyxis for repair or replacement. In some instances,
replacement instruments may be available for short duration loan or lease.
Pyxis warrants that any labor services provided shall conform to the reasonable standards of technical competency
and performance effective at the time of delivery. All service interventions are to be reviewed and authorized as
correct and complete at the completion of the service by a customer representative, or designate. Pyxis warrants
these services for 30 days after the authorization and will correct any qualifying deficiency in labor provided that
the labor service deficiency is exactly related to the originating event. No other remedy, other than the provision
of labor services, may be applicable.
Repair components (parts and materials), but not consumables, provided in the course of a repair, or purchased
individually, are warranted for 90 days ex-works for materials and workmanship. In no event will the incorporation
of a warranted repair component into an instrument extend the whole instrument’s warranty beyond its original
term.
Warranty Shipping
A Repair Authorization Number (RA) must be obtained from Pyxis Technical Support before any product can be
returned to the factory. Pyxis will pay freight charges to ship replacement or repaired products to the customer.
The customer shall pay freight charges for returning products to Pyxis. Any product returned to the factory without
an RA number will be returned to the customer.
Pyxis Technical Support
Contact Pyxis Technical Support at [e-mail].

Pyxis SP-700B Multimeter Operation Manual 3
Table of Contents
1Introducing the Pyxis SP-700B Multimeter...................................................................................5
1.1 Features of the Pyxis SP-700B Multimeter ...................................................................................5
1.2 Specifications ................................................................................................................................6
1.3 Unpacking the Pyxis SP-700B Multimeter .................................................................................... 6
1.4 Standard accessories.....................................................................................................................6
1.5 Optional accessories ..................................................................................................................... 7
1.6 Dual function light shield .............................................................................................................. 7
2Using the Pyxis SP-700B ..............................................................................................................8
2.1 Battery installation........................................................................................................................ 8
2.2 Using the SP-700B control keys ....................................................................................................9
2.2.1 Turning the SP-700B on and off ..........................................................................................10
3Multiple parameter measurement ............................................................................................10
3.1 Measurement..............................................................................................................................10
3.2 Temperature measurement........................................................................................................ 11
3.3 Conductivity temperature compensation................................................................................... 11
3.4 High color and turbidity warning ................................................................................................11
3.5 pH measurement ........................................................................................................................11
3.6 ORP measurement......................................................................................................................12
4Calibrating the SP-700B.............................................................................................................13
4.1 PTSA standalone calibration (2 point with zero) ........................................................................ 13
4.2 Standard conductivity calibration (500, 1000, 2500, or 5000 µS) ..............................................17
4.3 User-defined conductivity calibration procedure....................................................................... 20
4.4 Combined calibration procedure ................................................................................................24
5Fluorescein calibration..............................................................................................................27
6pH and ORP calibrations ...........................................................................................................32
6.1pH electrode calibration .............................................................................................................32
6.1.1 One-point calibration.......................................................................................................... 32
6.1.2 Second-point calibration.....................................................................................................33
6.1.3 Third-point calibration ........................................................................................................34
6.2 ORP calibration ...........................................................................................................................34
7Device information and diagnosis .............................................................................................35
8Device maintenance .................................................................................................................36
9Replacing the pH and ORP module (Hardware before SN: 170000).............................................36
10 Replacing the pH and ORP module (Hardware after SN: 170000)................................................37
11 Bluetooth connection ...............................................................................................................39
12 Calibrate ST-500 with SP-700B ..................................................................................................40
Contact us .......................................................................................................................................42

Pyxis SP-700B Multimeter Operation Manual 4

Introducing the Pyxis SP-700B Multimeter
Pyxis SP-700B Multimeter Operation Manual 5
1Introducing the Pyxis SP-700B Multimeter
The Pyxis SP-700B Multimeter is a hand-held multimeter that measures simultaneously six key
parameters in a water sample:
•pH
•Conductivity
•PTSA (Pyrene tetrasulfonic acid tetra sodium)
The PTSA measurement uses custom signal processing algorithms to compensate for sample
color and turbidity conditions that can cause erroneous readings.
•Fluorescein
•ORP
•Temperature
The SP-700B is a cuvette-less device, and has two sample cells. Less than 5 ml water is needed to
fill the cells for measurement of the six parameters.
1.1 Features of the Pyxis SP-700B Multimeter
The SP-700B includes the following features:
•Breakthrough technology combining PTSA / fluorescein with conductivity / pH and ORP in a
single rugged one-handed meter.
•Custom pH/ORP modular design with extra-large junction capacity providing increased
service life.
•Easy replacement of the pH/ORP electrode module without the need to open the meter
enclosure.
•Long battery life: 10,000+ readings.
•Self-diagnosis during calibrations.
•Custom product names and tracer/product ratios configurable via Bluetooth-enabled
devices.

Introducing the Pyxis SP-700B Multimeter
Pyxis SP-700B Multimeter Operation Manual 6
1.2 Specifications
The SP-700B maintains the minimum specifications shown in the following table.
Specifications are subject to change without notice. Contact Pyxis ([e-mail]) for
an updated specification list.
Item
Specification
Analysis
PTSA
Fluorescein
0-300 ppb, ±1 ppb or 1% precision
0-600 ppb, ±1 ppb or 1% precision
Conductivity
1-15,000 µS/cm with ATC. ±1% or ±1 µS/cm precision
pH
0-14 with ATC, ±0.01 pH unit precision
ORP
±1500 mV, ±1 mV precision
Temperature
0-70°C (32-160°F), ±0.1°C (±0.2°F)
Storage Temperature
-20°C - 60°C (-4-140°F)
Operational Temperature
0°C - 40°C (32-104°F)
Sensor Module
pH/ORP, replaceable
Typical Sensor Life
pH/ORP - 2 years
PTSA/Conductivity - 5 years
Protection Grade
IP67, full dustproof and waterproof
Regulation
CE
Display
Color LCD, visible under direct sunlight
Power Supply
4 AA alkaline batteries
Typical Battery Life
10,000 readings
Dimension (L x W x H)
180 x 80 x 32.6 mm (7.06 x 3.15 x 1.30 inches)
Weight
380g (0.85 lbs), batteries excluded
1.3 Unpacking the Pyxis SP-700B Multimeter
Remove the instrument and accessories from the shipping container and inspect each item for
any damage that may have occurred during shipping. Verify that all items listed on the packing
slip are included. If any items are missing or damaged, please contact Pyxis Customer Service at
[e-mail].
During shipping and storage after production, a sponge wetted with the KCl based pH storage
solution is placed in the pH/ORP cell. Some storage solution may dry out, leaving white
potassium chloride crystal in the surrounding areas of the cell. Please rinse the cell with DI
before use.
1.4 Standard accessories
The following accessories are included in the SP-700B package:
•Four (4) AA alkaline batteries

Introducing the Pyxis SP-700B Multimeter
Pyxis SP-700B Multimeter Operation Manual 7
•Bluetooth USB adapter
The full instrument manual is available for download at www.pyxis-lab.com/support.html
1.5 Optional accessories
The following optional accessories can be ordered from Pyxis Customer Service,
[e-mail]:
Accessory
Item number
Carrying case for SP-700B
MA-700
100 ppb PTSA + 1000 S/cm (KCl) combined
standard
MA-1010C
220 mV ORP calibration standard
100 ppb PTSA calibration standard
PTSA-100
20 ppb fluorescein calibration standard
FLUO-20
100 ppb PTSA + 10 ppb fluorescein standard
PTSA-100FL
20 ppb fluorescein + pH 10 calibration standard
FLPH-2020
1.6 Dual function light shield
The SP-700B light shield has two functions:
•It shields ambient light from potentially interfering with PTSA or fluorescein measurement.
•When the multimeter in storage, the rubber gasket on the side of the light shield facing the
pH/ORP cell seals the cell, maintaining a moisture-free environment for the electrodes.
The SP-700B light shield is shown in Figure 1.
Figure 1. Light shield in the open position

Using the Pyxis SP-700B
Pyxis SP-700B Multimeter Operation Manual 8
If the meter is to be stored for more than two weeks, fill the pH/ORP cell with 0.5 ml of the pH 4
buffer solution or any pH electrode storage solution. The sponge wetted with the pH storage
solution in the pH/ORP cell is needed only for long-term storage.
2Using the Pyxis SP-700B
2.1 Battery installation
The SP-700B is powered by four AA alkaline batteries. Typical battery life after replacing a new
battery set is 10,000 measurements, or 10 months. When the battery capacity is critically low,
the SP-700B displays a LOW BATTERY warning for five seconds, and then automatically turns off.
Note: Do not use rechargeable nickel cadmium (NiCad) or lithium batteries in the SP-700B.
Use only alkaline batteries.
Replace the batteries to resume operation after a low battery warning. To turn the SP-700B back
on after new battery installation, press the OK key for one second (the SP-700B does not turn
itself on automatically after the new battery installation).
Maintaining SP-700B date and time during battery installation: The SP-700B has a calendar
timer. To prevent the calendar from being reset to the default date and time (01/01/1970,
00:00:00), install the four new batteries within four minutes after the old batteries are removed
from the battery compartment.
Light shield
pH+ORP cell seal
pH+ORP cell
Fluorescence and
conductivity cell
Color screen
Three control keys

Using the Pyxis SP-700B
Pyxis SP-700B Multimeter Operation Manual 9
The SP-700B date and time is synchronized with your PC automatically when connected with
Nebula software via Bluetooth adapter. For more information about Bluetooth and the Nebula
software, see page 37.
The SP-700B battery compartment, shown in Figure 2, is on the back side of the instrument.
Batteries are held in place by a cover secured with four Phillips-head screws.
Figure 2. The SP-700B battery compartment
Use the following procedure to install new batteries:
1. Remove the battery compartment cover by loosening the four screws.
2. Gently remove the old batteries, and dispose of properly.
3. Following the positive and negative signs in the compartment bottom, snap four new AA
alkaline batteries firmly into the battery holder.
4. Replace the battery compartment cover, and ensure that the sealing O-ring is lying flat on
the battery holder. Note that failure to properly seat the O-ring may result in water damage
to the meter.
5. Firmly tighten the four screws (this prevents the SP-700B from accidently being turned on or
off due to vibration).
2.2 Using the SP-700B control keys
The SP-700B has three control keys, as shown in Figure 3. The left ( < ), right ( > ), and OK keys
are used to launch an action indicated on the LCD screen directly above the keys. Note that the
LCD screen is not a touch-enabled device; the labels above the keys indicate the function
associated with the keys, and functions can be changed in different operation modes.

Multiple parameter measurement
Pyxis SP-700B Multimeter Operation Manual 10
Figure 3. Control keys and associated functions
2.2.1 Turning the SP-700B on and off
To turn on the SP-700B:Press the OK control key momentarily and release.
To turn off the SP-700B:Press and hold the OK key for three seconds. Release the OK key when
the LCD display turns off.
The SP-700B turns itself off after 60 seconds without user interaction.
3Multiple parameter measurement
3.1 Measurement
When powered on, the SP-700B is in Measurement mode (as shown in Figure 3, above).
A water sample can be transferred to the measurement cells using a pipette, or the cells can be
filled directly from a faucet or a sample bottle.
Rinse cells before measurement. Before beginning a measurement, use some of the sample
water to rinse the cells at least three times. Rinsing the surface between and around the cells
helps reduce cross-contamination when measuring multiple samples, especially when switching
to a sample with conductivity/pH/ORP significantly different than the previous sample.
Using the light shield. To measure PTSA and fluorescein, the light shield should be in the closed
position. If you are not making a fluorescence measurement, you can leave the light shield in the
open position without affecting the reading and accuracy of conductivity, pH, or ORP.
Control key functions
<
>
OK
Control keys